Refer to the exhibit.


London(config)# interface #fa0/1 London(config-if)# switchport trunk encapsulation dot1q London(config-if)# switchport mode trunk %LINEPROTO-5-UPDOWN:Line protocol on Interface FastEthernet0/1, changed state to down %LINEPROTO-5-UPDOWN:Line protocol on Interface FastEthernet0/1, changed state to up London(config-if)#end
NewYork# show dtp interface fa0/1 DTP information for FastEthernet0/1 TOS/TAS/TNS: ACCESS/AUTO/ACCESS TOT/TAT/TNT: NATIVE/ISL/NATIVE 

Communication between London and New York is down. Which command set must be applied 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#