CompTIA Exam Questions

Which of the following combinations should be used to include all of the given IP addresses?

A security administrator would like to write an access rule to block the three IP addresses given below.
Which of the following combinations should be used to include all of the given IP addresses?
192.168.12.255
192.168.12.227
192.168.12.229

A.
192.168.12.0/25

B.
192.168.12.128.28

C.
192.168.12.224/29

D.
192.168.12.225/30