The Example in the Book About the Zen Master and Tea

Multiple Choice

The example in the book about the Zen master and tea proves what point?

A) that you need to get into the right frame of mind
B) a person listening to you is like a tea cup, they can't accept anymore ideas until they "empty their cup"
C) the Zen master likes tea
D) a person listening is like a tea cup that is half full: he can either be optimistic (half full) or pessimistic (half empty)