下图是甲、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，AB

C：AAaaBbbb，AaaBBb，AaB

D：AaaBbb，AAabbb，ABCD