How much percent of material which passes through a specific sieve is contained in that single-size aggregate?

How much percent of material which passes through a specific sieve is

1.	How much percent of material which passes through a specific sieve is contained in that single-size aggregate?
A.	50-60%
B.	85-100%
C.	70-90%
D.	80-85%
Answer» C. 70-90%