What quality of the traits that mendel chose to study allowed him to esablish the basic laws of inheritance

A)the genes for most of the traits are linked
B)the genes fr all of the traits had more than two alleles each
C)the alleles that he studied were either dominant or recessive
D) the epistatic genes for the traits he studied were homozygous recessive
E) the traits he studied were never ontrolled by two or morw genes

b