Which of the Following Are Consistent with Facilitated Diffusion

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