If the Normal Activity of Cone Cells in the Retina

If the normal activity of cone cells in the retina were blocked, what would be the result in the flow of visual information?

A) Rods would not be able to cause neurotransmitter release in dark conditions.
B) Information about color would not be detected.
C) Color vision would be limited to one spectrum.
D) Retinal ganglion cells would not fire action potentials.
E) Cones would synapse with ganglion cells.