Match the Column-$I$ with Column-$II$:

Column-$I$	Column-$II$
$(a)$ Pleiotropic gene	$(i)$ Both alleles express equally
$(b)$ Co-dominance	$(ii)$ Change in nucleotide
$(c)$ Epistasis	$(iii)$ One gene shows multiple phenotypic expression
$(d)$ Mutation	$(iv)$ Non-allelic gene interaction

• A
  $a-i, b-ii, c-iii, d-iv$
• B
  $a-ii, b-iii, c-iv, d-i$
• C
  $a-iii, b-i, c-iv, d-ii$
• D
  $a-iii, b-iii, c-iv, d-ii$