All of the Following Statements About a Facilitated Diffusion Transport

All of the following statements about a facilitated diffusion transport system are correct EXCEPT

A) like an enzyme, the system would display saturation or Michaelis-Menten kinetics.
B) transport of a compound would be expected to be inhibited by a close chemical analogue.
C) transport would be vectorial or one-way.
D) the system would be expected to be quite specific, i.e., it would be expected to transport only one or a few closely-related compounds.
E) a mutation, expressed as the loss of ability to make a certain membrane protein, could result in loss of ability of a cello take up a given compound.