What is the effect of configuring a port channel with one side set to passive mode and the other side set to active mode?

A. The channel group will use PAgP.
B. The channel group will not be formed.
C. The channel group will use LACP.
D. The channel group will use EtherChannel.

C. When you use passive on one side and active on the other side of a port channel, the result is that Link Aggregation Control Protocol (LACP) will be used.