Given the task definition and input, reply with output. You are given a short paragraph, a question and two choices to answer from. Choose the correct answer based on the paragraph and write the answer(not the key).

Paragraph: The size of the eroded particles depends on the velocity of the water. Eventually, the water deposits the materials. As water slows, larger particles are deposited. As the water slows even more, smaller particles are deposited.
 Question: Mike wants to see how fast water can run while still depositing small particles. In order to get the smallest particles deposited, Mike will need the water to be running 
 Choices: A)quickly 
B)slowly
slowly