What is the fastest way she can accomplish this with Nmap?

Trinity needs to scan all hosts on a /16 network for TCP port 445 only.

What is the fastest way she can accomplish this with Nmap? Stealth is not a concern.
A . nmap -sn -sF 10.1.0.0/16 445
B . nmap -p 445 -n -T4 Copen 10.1.0.0/16
C . nmap -s 445 -sU -T5 10.1.0.0/16
D . nmap -p 445 Cmax -Pn 10.1.0.0/16

View Answer

Answer: B