A customer asks you to create a subnet mask for their network, making sure address space is conserved as much as possible. Each subnet must support at least 12 hosts, and the address space given is...

A customer asks you to create a subnet mask for their network, making sure address space is conserved as much as possible. Each subnet must support at least 12 hosts, and the address space given is 199.16.7.0. Which of the following answers best fits the customer’s needs?

A. 255.255.255.248, creating 14 subnets and providing 14 hosts per subnet

B. 255.255.255.240, creating 14 subnets and providing 14 hosts per subnet

C. 255.255.255.240, creating 16 subnets and providing 14 hosts per subnet

D. 255.255.255.224, creating eight subnets and providing 30 hosts per subnet