In this task, you're given a question, along with three passages, 1, 2, and 3. Your job is to determine which passage can be used to answer the question by searching for further information using terms from the passage. Indicate your choice as 1, 2, or 3.
Q: Question: How long did the event that Animal farm reflecst the events leading to last? Passage 1:According to Orwell, the fable reflects events leading up to the Russian Revolution of 1917 and then on into the Stalinist era of the Soviet Union. Orwell, a democratic socialist, was a critic of Joseph Stalin and hostile to Moscow-directed Stalinism, an attitude that was critically shaped by his experiences during the Spanish Civil War. The Soviet Union, he believed, had become a brutal dictatorship, built upon a cult of personality and enforced by a reign of terror. In a letter to Yvonne Davet, Orwell described Animal Farm as a satirical tale against Stalin (""), and in his essay "Why I Write" (1946), wrote that Animal Farm was the first book in which he tried, with full consciousness of what he was doing, "to fuse political purpose and artistic purpose into one whole".
 Passage 2:Frank Alberry, DCM (29 September 1892 – 23 January 1968) was an Australian soldier and airman who had a varied military career. Born in Hobart, he served in the Welch Regiment of the British Army before the First World War, but deserted. He joined up again in the early days of the First World War, and went on to serve with the 8th Battalion of the Australian Imperial Force. After service at Gallipoli, he joined the British Expeditionary Force in France. He won a Distinguished Conduct Medal at the Battle of Pozières, but lost a lower leg in the process. Alberry took the extraordinary step of personally petitioning King George V for permission to transfer to the Flying Corps, and subsequently became a flying ace credited with seven aerial victories. Alberry returned to service during the Second World War as a recruiter.
 Passage 3:On November 4, an extratropical disturbance was spawned just off the coast of western France, within a cold front, by another extratropical cyclone to the north, named "Quinn." This storm began causing heavy rainfall in northern Italy, leading to flooding in the region. On the next day, a low-pressure area formed over western France, and the system was named Rolf by the Free University of Berlin, which names all significant low pressure systems affecting Europe. As the storm slowly moved eastward, it caused flooding in the Balearic Islands. Rolf gradually organized, and convection began to increase in the storm. Over the next couple of days, the storm continued to organize as it moved eastward, approaching the northwestern coast of Italy. On November 5, Rolf's forward motion slowed while the storm was stationed above the Massif Central in southern France, maintaining a central pressure of . On November 6, the system moved into the western Mediterranean Sea and stalled off the coast of Liguria, while gradually strengthening, bringing additional flooding to the region. Around the same time, the storm's frontal structure shrunk to in length. During that evening, Rolf spawned a tornado over Alassio, in northern Italy, causing some structural damage. On November 7, 2011, Rolf turned westward and slowly transitioned from an extratropical system into a subtropical depression over the warm waters of the Mediterranean Sea, with the system acquiring a warm quasi-symmetric core, and with organized convective rainbands wrapping around the center of the storm. The storm was then given the designation Invest 99L, by the United States Naval Research Laboratory (the NRL). The NOAA also began watching the subtropical depression, which was now located in the Gulf of Lion. Later that day, Rolf transitioned from a subtropical depression into a tropical depression off the coast of France, and the NOAA gave Rolf the identifier 01M. 

A:
1