请选择CBA+j8x1p:q2j4M3`*N This is ________ bear. That is ________ elephant.'|,m.B2}*H6U;L/S2~
A. a; an'|,m.B2}*H6U;L/S2~
B. an; a'|,m.B2}*H6U;L/S2~
C. a; a'|,m.B2}*H6U;L/S2~