Implementing Cisco IP Switched Networks (SWITCH v2-0) (#378)

Refer to the exhibit.

Which set of configurations will result in all ports on both switches successfully bundling into an EtherChannel?

switch1 channel-group 1 mode active switch2 channel-group 1 mode auto
switch1 channel-group 1 mode desirable switch2 channel-group 1 mode passive
switch1 channel-group 1 mode on switch2 channel-group 1 mode auto
switch1 channel-group 1 mode desirable switch2 channel-group 1 mode auto