如图是甲、乙、丙三种生物体细胞内染色体情况示意图，则对应的基因型可依次表示为(   )

A．AaBb，AAaBbb，Aaaa

B．AaaaBBbb，Aaa，AABB

C．AAaaBbbb，AaaBBb，AaBb

D．AaaaBbbb，AAabbb，ABCD