下图甲、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，AaBb	D．AaaBbb，AAabbb，ABCD