Which subnet should you use?

Your company owns the public Internet IP address range of 131.107.20.0 to 131.107.20.255.

You need to create a subnet that supports four hosts. The solution must minimize the number of addresses available to the subnet.

Which subnet should you use?
A . 131.107.20.16/28
B . 131.107.20.16/30
C . 131.107.20.0/29
D . 131.107.20.0 with subnet mask 255.255.255.224

Answer: C

Explanation:

http://jodies.de/ipcalc?host=131.107.20.0&mask1=29&mask2=