请选择ABCD2G;q7j;y:f*N0h+}*K'bMiss Smith is a friend of____.-K/~)f0},w*I/u(i;F,Z
A. Mary's mother's-K/~)f0},w*I/u(i;F,Z
B. Mary's mother-K/~)f0},w*I/u(i;F,Z
C. mother's of Mary-K/~)f0},w*I/u(i;F,Z
D. Mary mothers-K/~)f0},w*I/u(i;F,Z