Hector has 10 cups of flour which equation shows how to determine the number of 2/5 of a cup serving where there are in the 10 cups of flour

A. 10 divide by 2/5 equals 25

B. 10x 2/5 equals 4

C. 2/5 divide by 10 equals 1/25

D. 5/2 divide by 10 equals 1/4

HELP!!!!!!!!