Detailed Instructions: 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: When was Cohen born? Passage 1:Collard made his debut for Cambridgeshire in the 1971 Minor Counties Championship against Bedfordshire. Collard played Minor counties cricket for Cambridgeshire from 1971 to 1992, including 108 Minor Counties Championship matches and 14 MCCA Knockout Trophy matches. In 1975, he made his List A debut against Northamptonshire in the Gillette Cup. He played four further List A matches for Cambridgeshire, the last coming against Worcestershire in the 1989 NatWest Trophy. In his five List A matches, he scored 17 runs at a batting average of 8.50, with a high score of 9. With the ball he took 5 wickets at a bowling average of 33.20, with best figures of 3/38.
 Passage 2:When the ultimate goal of plasma processing is a purified plasma component for injection or transfusion, the plasma component must be highly pure. The first practical large-scale method of blood plasma fractionation was developed by Edwin J. Cohn during World War II. It is known as the Cohn process (or Cohn method). This process is also known as cold ethanol fractionation as it involves gradually increasing the concentration of ethanol in the solution at 5C and 3C. The Cohn Process exploits differences in properties of the various plasma proteins, specifically, the high solubility and low pI of albumin. As the ethanol concentration is increased in stages from 0% to 40% the [pH] is lowered from neutral (pH ~ 7) to about 4.8, which is near the pI of albumin. At each stage certain proteins are precipitated out of the solution and removed. The final precipitate is purified albumin. Several variations to this process exist, including an adapted method by Nitschmann and Kistler that uses fewer steps and replaces centrifugation and bulk freezing with filtration and diafiltration.
 Passage 3:Roger Brito is listed in the Domesday Book of 1086 as holding land under the overlordship of the Church of Long Sutton in Somerset, in which county the family was later seated at Sampford Brett (alias Sandford-Bret). During the reign of King Henry I (1100–1135) Sampford Brett was held by Simon le Bret, from the feudal barony of Dunster by military service of half a knight's fee. He served in the household of Henry II's brother William, Count of Poitou and was a near neighbour of the FitzUrse family of Williton in Somerset, a member of which family was another of the assassins of Thomas Becket. Simon le Bret had two sons: Richard Brito, one of the assassins of Thomas Becket and Edmund le Bret, who adopted the surname de Sandford from his seat. William the Conqueror granted a manor in the eastern part of the parish of Great Stamford Bridge in Essex and another in Sanford in Somerset to a Norman named Auvrai Le Breton following the Norman conquest of England. A later relative, Simon Le Breton, had two sons, Richard and Edmund, who inherited their share of Sanford and Great Master Bridge. Both were part of the royal court of King Henry II; in particular Richard Le Breton was a close friend of the king's brother, Prince William.

A:
2