Which of the Following Are Consistent with Facilitated Diffusion? (1)movement

Which of the following are consistent with facilitated diffusion? (1) movement is against a concentration gradient
(2) movement is with a concentration gradient
(3) involves a carrier molecule
(4) involves cotransport
(5) involves counter transport
(6) exhibits competition and saturation

A) 1,2,4,5,6
B) 2,3,5,6
C) 2,3,4,6
D) 1,3,4,5,6
E) 2,3,6