Answer:
The answer to this question is option "B".
Explanation:
In the given question options B and C are correct because class B uses a network, subnet, and host bits that must be equal to the sum of 32 bits. In both options the total bits are equal to 32 bits, a class needs 7 subnet bits at any rate for supports 100 subnets. and other options are not correct that can be defined as: