If the M Ganglion Cells in the Retina Suddenly Disappeared

Multiple Choice

If the M ganglion cells in the retina suddenly disappeared, what would be the consequences for perception?

A) Motion perception would be severely impaired.
B) Peripheral vision would be greatly improved.
C) Foveal vision would be greatly improved.
D) Foveal vision would be severely impaired.
E) Color and form perception would be severely impaired.