According to the speaker，how many percent of customers read food labels before making a purchase

A. Computer sales negotiations.
B. A preliminary interview.
C. An Internet seminar meeting.
D. Computer games.

A. She broke the microphone.
B. She was interrupted by a phone call during her presentation.
C. She is planning to give her presentation as soon as the microphone is fixed.
D. The microphone broke just as she began her presentation.