In humans, the presence of black eye pigment suppresses the presence of brown eye pigment. What can you conclude from this statement? 
 A: The allele for black eye pigment is dominant to the allele for brown eye pigment, and both alleles are variations of the same gene. 
 B: The allele for brown eye pigment is dominant to the allele for black eye pigment, and both alleles are variations of the same gene. 
 C: The allele for brown eye pigment is dominant to the allele for black eye pigment, and the alleles are variations of two different genes.