Which occurs during cytokinesis?

Cytokinesis is that the physical process of biological process, which divides the cytoplasm of a parental cell into two daughter cells. It occurs concurrently with two styles of nuclear division called mitosis and meiosis, which occur in animal cells.

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).   so the answer is a.