请选择DCBA7V7Q5p5o.T3m1s1V8k8N*]5E ---How do you do? ---_____.2r;S0Q-O:]6E,k'`.^
A. How old are you?2r;S0Q-O:]6E,k'`.^
B. Fine, thanks.2r;S0Q-O:]6E,k'`.^
C. How are you?2r;S0Q-O:]6E,k'`.^
D. How do you do?2r;S0Q-O:]6E,k'`.^