请选择DCBA,\*r4k)w(D/]1Z8}9Y+I.W Mike: Is this your sister? Lucy: ___________3V(V/Q0e.O1u5x0O*h
A. yes, he is.3V(V/Q0e.O1u5x0O*h
B. Yes, she is.3V(V/Q0e.O1u5x0O*h
C. Cool!3V(V/Q0e.O1u5x0O*h
D. Great!3V(V/Q0e.O1u5x0O*h