Which two options are modes of operation of the 2-port CFP line card?

Which two options are modes of operation of the 2-port CFP line card? (Choose two.)

A.
two 100G clients into two 100G WDM line cards

B.
2 x 40G muxponder client into one 100G line card

C.
two 40G transponders

D.
2 x 100G muxponder into 200G line card