what does the “11” in bits 1 and 2 indicate ?

With the DSCP value fo "101110", what does the "11" in bits 1 and 2 indicate ?

A.
AF Class

B.
Drop Probability

C.
CS(Class Selector Value )

D.
PHB (Per-Hop Behavior )

E.
IP Precedence

F.
Queue Depth