-- Is this your ？- Yes it is. Her name is Jenny.A. brother　　B. father　　C. sister　　D. gr

问题补充：

-- Is this your ？ --- Yes，it is. Her name is Jenny.

A. brother

B. father

C. sister

D. grandpa

答案：

A. brother

B. father

(答案→)C. sister

D. grandpa

解析：四个选项分别表示兄弟，父亲，姐妹和爷爷，根据下文可知前面为女性，故选C。