请选择ABCD'^+M+h.k*}:t-G9` Children should make____ for old people in a bus.4e2u1q*e7{6F
A. room4e2u1q*e7{6F
B. a room4e2u1q*e7{6F
C. rooms4e2u1q*e7{6F
D. the room4e2u1q*e7{6F