Which two statements best describe EtherChannel?

Which two statements best describe EtherChannel?

A.
EtherChannel technology helps aggregate traffic grouping multiple,full-duplex point-to-point links together

B.
EtherChannel technology is based on the 802.1 IEEE stand

C.
EtherChannel can aggregate up to 800 Mbps,8 Gbps,or Gbps of aggregate bandwidth for a Fast EtherChannel,Gigabit EtherChannel,or 10 Gigabit EtherChannel connection respectively.

D.
EtherChannel is defined for Rapid Spanning Tree for faster convergence.