请选择ABCD4E(U0O-v0g5j1H5O'V5O7|8MI've forgotten both of the____.1b-n,n*Y:h1b2k7_
A. room numbers1b-n,n*Y:h1b2k7_
B. rooms number1b-n,n*Y:h1b2k7_
C. rooms numbers1b-n,n*Y:h1b2k7_
D. room number1b-n,n*Y:h1b2k7_