On Cisco ASA Software Version 8.4 and later, which two options show the maximum number of active and standby ports that an EtherChannel can have? (Choose
two.)

A.
2 active ports

B.
4 active ports

C.
6 active ports

D.
8 active ports

E.
2 standby ports

F.
4 standby ports

G.
6 standby ports

H.
8 standby ports

Explanation:
http://www.cisco.com/en/US/docs/security/asa/asa84/asdm64/configuration_guide/interface_star t.pdf
Channel Group Interfaces
Each channel group can have eight active interfaces. Note that you can assign up to 16 interfaces to a channel group. While only eight interfaces can be active, the
remaining interfaces can act as standby links in case of interface failure.

All interfaces in the channel group must be the same type and speed. The first interface added to the channel group determines the correct type and speed.
The EtherChannel aggregates the traffic across all the available active interfaces in the channel. The port is selected using a proprietary hash algorithm, based on
source or destination MAC addresses, IP addresses, TCP and UDP port numbers and vlan numbers