When We Try to Understand How Other People Define a Situation,why

Multiple Choice

When we try to understand how other people define a situation,why might expressions given off seem like more trustworthy guides than expressions given?

A) Expressions given off are easy to use in deceptive ways.
B) We tend to believe that it is harder to manipulate expressions given off.
C) Expressions given are almost never intentional.
D) Expressions given off are almost always verbal and intentional.