请选择ABCD3?5\4H;N.p+E,d']6_/F7o*m;M5}/i5d.uThe post card is sent by ____.9K:k:k
A. a friend of my father9K:k:k
B. a friend of my father's9K:k:k
C. my father friend9K:k:k
D. my father friend's9K:k:k