某男，65岁。背部生疮，疮形平塌，根角散漫，难溃难腐。应给予的治法为

A．行气法
B．清热法
C．内托法
D．温通法
E．理湿法

Where does this conversation most probably take place
[A] In a bank.
[B] In a restaurant.
[C] In a department store.