Bella Is a Teacher Who Suspects That a Student Is

Multiple Choice

Bella is a teacher who suspects that a student is trying to deceive her.Under which of the following conditions does Bella have the best chance of detecting whether or not the student is lying?

A) if Bella reads a written transcript of the student's story
B) if Bella sees a silent video of the student's face as the student tells the story
C) if Bella reads a written transcript of the student's story and sees a silent video of the student's face as the student tells the story
D) if Bella sees a silent video of the student's body language as the student tells the story