How many bits are in the network portion of a Class B subnet mask?

A.
8 bits

B.
16 bits

C.
32 bits

D.
4 bits

Explanation:
A Class B subnet mask is 16 bits network, 16 bits host
Incorrect Answers:
A: A Class A subnet mask is 8 bits network, 24 bits host.
C: A subnet mask does not have a 32 bit network, that would be the entire mas.
D: At least 8 bits are used for the network, the first 4 bits represent the class type.