______history of the American South is ________history of suffering, also one of hope and success.[ ]

A. A; the       

B. The; the        

C. A; a        

D. The; a

下图为白化病（A-a）和色盲（B-b）两种遗传病的家族系谱图。请回答：

Ⅲ8与Ⅲ11以及Ⅲ7与Ⅲ10之间结婚，均属（）婚配，他们之间的亲缘关系是（）血亲