Refer to the exhibit. The EtherChannel is configured with a speed of 1000 and duplex as full on both ends of channel group 1. What is the next step to configure the channel on switch A to respond to but not initiate LACP communication?

A. interface range gigabitethernet0/0/0-15
channel-group 1 mode on
B. interface range gigabitethernet0/0/0-15
channel-group 1 mode desirable
C. interface port-channel 1
channel-group 1 mode auto
D. interface port-channel 1
channel-group 1 mode passive