network – netcat vs nmap for banner grabbing?

I am preparing for a security exam and a question I failed in a practice has the following:

A command line tool that can be used for banner grabbing is called:
A] tcpdump
B] netcat
C] nmap
D] Wireshark

I chose nmap, but the correct solution is apparently netcat. I am aware that netcat is used for banner grabbing, but so is nmap:

What did I miss? Is the question incorrect?