The Pax6 Gene Is Considered a Master Gene Because

The Pax6 gene is considered a master gene because

A) it was the first gene developed that resulted in a protein for sight.
B) it controls the development of all the homologues that have to do with light refraction in the eye.
C) the primitive eye developed into the complex eye.
D) the gene encodes for development of ommitidia which combine to make the simple eye.
E) the protein encoded by the Pax6 gene is a transcription factor that controls the expression of many other genes needed for eye development.