What should you do to quickly verify whether ISA1 is allowing traffic to TCP port 139?

Your network contains an ISA Server 2006 computer named ISA1. The IP address bound to the external network adapter of ISA1 is 192.168.100.141. You run the netstat Cna command on ISA1. The relevant portion of the output is shown in the following table.

You need to be able to quickly verify whether ISA1 is allowing traffic to TCP port 139.

What should you do?

A.
From a remote computer, run the pathping command to query ISA1.

B.
From a remote computer, use a port scanner to query ISA1.

C.
On ISA1, use the Portqry.exe tool to query ISA1.

D.
On ISA1, use the Netdiag.exe tool to query ISA1.