What is the following command trying to accomplish?

What is the following command trying to accomplish?

A.
Verify that UDP port 445 is open for the 192.168.0.0 network

B.
Verify that TCP port 445 is open for the 192.168.0.0 network

C.
Verify that NETBIOS is running for the 192.168.0.0 network

D.
Verify that UDP port 445 is closed for the 192.168.0.0 network