Here's a short story: Avery rides his bike through two puddles. When he rides his bike through the mud puddle, his bike moves very slowly. When he rides his bike through the rain puddle, his bike speeds up. The bike slows down in the mud puddle because there is (A) less friction. (B) more friction.  What is the most sensical answer between "rain puddle" and  "mud puddle"?
Answer:
mud puddle