请选择DCBA4y8o0X3W)K:_)d7O2L5U8k:~ — _________ does your father do?7Q3r3n-f-c6B-E+J
—He’s an engineer.7Q3r3n-f-c6B-E+J
A．Who7Q3r3n-f-c6B-E+J
B．What7Q3r3n-f-c6B-E+J
C．Which7Q3r3n-f-c6B-E+J
D．How old7Q3r3n-f-c6B-E+J