Which of the following is the minimum subnet mask to allow 172.16.1.5 and 172.16.4.3 to be on the same subnet?

Which of the following is the minimum subnet mask to allow 172.16.1.5 and 172.16.4.3 to be on

the same subnet?

A.
/19

B.
/21

C.
/22

D.
/24