​When a man marries his father's brother's daughter, property is:

A) ​transferred to the woman's father
B) ​retained in the groom's male line
C) ​reaccessioned in the woman's mother's line
D) ​reassigned to the groom's paternal grandfather

When a man marries his father's brother's daughter, property is retained in the groom's male line. This is because this type of marriage is a form of patrilineal parallel cousin marriage, where the groom and his cousin are members of the same patrilineage and the property remains within that patrilineage.