Help needed and to explain why.

Given a company uses IPv4 network, and the company has:

1 building with a total of 234 cubicles and 20 offices 28 buildings with a total of 28 labs.

And,

Each cubicle will be assigned 1 IP address. Each office will be assigned 1 IP address. Each lab will be assigned 62 IP addresses

The company is given three choices of IPv4 address range:

(Choice 1) 100.100.100.0 to 100.100.107.255

(Choice 2) 100.100.252.0 to 100.101.3.255

(Choice 3) 100.102.208.0 to 100.102.215.255

Questions:

(a) Choose 1 recommendation from the 3 choices provided above and explain why you recommend the choice for the IP address range for the company? (b) Provide your answer and explain how you determine the IP address (or address range) for the 29 buildings (234 cubicles, 20 offices & 28 labs.) (c) What is the subnet masks for the 28 labs? Provide w.x.y.z/s notation of the subnet masks.