Questions 11-16 are based on the following conversation. You now have 30 seconds to read the questions 11-16. Which of the following statements is true

A．Mary said Charles was like a baby, because he couldn’t see the simplest thing that was taking place in front of him.
B．Charles was surprised to see that Frieda was in Jan’s arms since Frieda had already had a boyfriend.
C．Mary thought Charles should have known that Jan was in love with Frieda because it was not a secret.
D．Charles students had gone because they didn’t like Charles’class.