Correct Answer: A default Class B is 25525500 A Class B 2552552550 mask is 256 subnets, each with 254 hosts We need fewer subnets If we used 255255240 0, this provides 16 subnets Let's add one more subnet bit 2552552480 This is 5 bits of subnetting, which provides 32 subnets This is our best answer A/21
