Betty and her sister went to the museum with a relative of ___ .A,her B,hers C,their D,theirs

Betty and her sister went to the museum with a relative of ___ .A,her B,hers C,their D,theirs
Betty and her sister went to the museum with a relative of ___ .A,her B,hers C,their D,theirs

Betty and her sister went to the museum with a relative of ___ .A,her B,hers C,their D,theirs
D,theirs
和“他们的”一个亲戚逛博物馆.