If Two Homozygous Parents Have Normal Vision, What Allele for Vision

If two homozygous parents have normal vision, what allele for vision will their gametes carry?

A) All will carry the allele for normal vision.
B) One quarter will carry the allele for normal vision.
C) Half will carry the allele for normal vision and half will carry the allele for nearsightedness.
D) Three quarters will carry the allele for normal vision.