请选择DCBA7r4P5e+i.p(_7\2@This is my____dictionary.7\4}2I0d/J7D-L:V;q.m4t2u
A. sister Mary7\4}2I0d/J7D-L:V;q.m4t2u
B. sister's7\4}2I0d/J7D-L:V;q.m4t2u
C. sister, Mary's7\4}2I0d/J7D-L:V;q.m4t2u
D. sister's Mary's7\4}2I0d/J7D-L:V;q.m4t2u