Floors, walls, and ceilings should be made of materials that are all of the following except: a. durable materials
b. easily cleanable
c. rough to prevent slippage
d. nonabsorbent

b. easily cleanable

Explanation:

well when looking at this if you think about it   negativley and positivley   react with each other and when the first layer gets full they add layers it starts with 2 on the first layer and it constantly goes on until the official number is there

the answer would be a." don't hit a home run when the game is tied"