Based on the packet capture below, which of the following services is the client requesting?
08:30:54.982378192.168.50.42.8329 > 192.168.50.20.53:
S 32859235:32859235(0) win 8096
08:30:55.001378192.168.50.20.53 > 192.168.50.42.8329:
S 31845637: 31845637(0) ack 32859236 win 8096
08:30:55.027578192.168.50.42.8329 > 192.168.50.51.53:
ack 1 win 8096

A.
ARP

B.
SMTP

C.
DHCP

D.
DNS