Questions 22 to 25 are based on the conversation you have just heard.

A．Be unable to breathe.
B．Be overcome by pressure.
C．Become speechless.
D．Be scared by pressure.

A．he had prescribed wrong medicine for patients by mistake
B．he had treated his patients with something illegal, causing bad result
C．he had pretended to be a prominent surgeon
D．he had sold an unauthorized product in large amount