In the "Observing What You See" Reading in Chapter 6

In the "Observing What You See" reading in Chapter 6, the author details how she made inferences about a student she observed in a cafeteria. What does she conclude?

A) She was able to figure out as much about the student from his nonverbal behaviour as from speaking with him.
B) To accurately infer things about a person based on their behaviour, you need to have extrasensory powers.
C) Observing the student's nonverbal behaviour and communication told her little about his personal life or philosophies.
D) After watching the student for about a week, she still couldn't make very accurate inferences, so she had to speak with the student at a party they both attended to find out more.