Questions 17-20 are based on the following talk introducing Andrew Jackson, one of the American Presidents. You now have 20 seconds to read Questions 17-20. Why couldn’t he feel anything in his right leg
A．Because his right side was paralyzed. B．Because he pinched his right leg and there was no sensation in it. C．Because what he pinched was the girl’s leg, not his own. D．Because he had a sudden stroke.