John Is a Penetration Tester Who Wants to Perform Port

John is a penetration tester who wants to perform port scan on the DNS Server (IP address: 192.168.0.124) deployed in the perimeter. In his primary research, he identified that the DNS server is configured with default settings. Since he is employing Nmap tool to perform port scanning, which of the following Nmap commands should John execute to port scan the DNS Server?

A) nmap -sS -sU -p 80 192.168.0.124
B) nmap -sS -sU -p 69 192.168.0.124
C) nmap -sS -sU -p 123 192.168.0.124
D) nmap -sS -sU -p 53 192.168.0.124