句型：This is my... — 英语选择题
题目
晚上，小华在看家庭相册并向大家介绍家人。他先指着戴眼镜的爷爷说：This is my grandpa. 再指着扎辫子的小女孩说：This is my sister. 最后指着头发花白的奶奶说：This is my ______. 下面哪句也是小华可能说的正确介绍？A. This is my grandma. B. This is my brother. C. This is my father. D. This is my mother.