Which of the Following Is True of the Primate Retina

Which of the following is true of the primate retina?

A) There are three different rod types within the retina.
B) The ganglion cells comprise the greatest number of neuron types in the retina.
C) The retina contains one type of cone.
D) Photoreceptors directly form synapses with ganglion cells.
E) The retina contains about 55 different neuron types.