How can NMAP be used to scan these adjacent Class C networks?

A company has five different subnets: 192.168.1.0, 192.168.2.0, 192.168.3.0, 192.168.4.0 and
192.168.5.0. How can NMAP be used to scan these adjacent Class C networks?

A.
NMAP -P 192.168.1-5.

B.
NMAP -P 192.168.0.0/16

C.
NMAP -P 192.168.1.0,2.0,3.0,4.0,5.0

D.
NMAP -P 192.168.1/17