【单选题】

Questions 11—13 are based on the following monologue about aspirin. You now have 15 seconds to read Questions 11—13. What warning did the doctors give about the use of aspirinA．Don’t use it before meal.

B．Don’t use it after meal.
C．Don’t use it to the olD、
Don’t use it if people have stomach bleeding or other bad reactions from aspirin.