Which to resolve this issue?

Refer to the exhibit

Communication between London and New York is down.

Which to resolve this issue?
A . NewYork(config)#int f0/1
NewYork(config)#switchport nonegotiate
NewYork(config)#end
NewYork#
B . NewYork(config)#int f0/1
NewYork(config)#switchport mode trunk
NewYork(config)#end
NewYork#
C . NewYork(config)#int f0/1
NewYork(config)#switchport trunk encap dot1q
NewYork(config)#end
NewYork#
D . NewYork(config)#int f0/1
NewYork(config)#switchport mode dynamic desirable
NewYork(config)#end
NewYork#

View Answer

Answer: C

Explanation:

https://learningnetwork.cisco.com/s/question/0D53i00000Ksyty/tostastns-tottattnt