请选择ABCD)w-l9J-T2U:I6Q:D*z0z-HThat is ____ apple.:P9j/f3_1S,c2s
A. a:P9j/f3_1S,c2s
B. an:P9j/f3_1S,c2s
C. Ihe:P9j/f3_1S,c2s
D. 不填:P9j/f3_1S,c2s