All People Want to Be Perceived as Friendly and Personable

Multiple Choice

All people want to be perceived as friendly and personable. Those people who are perceived as shy or quiet often come across as less friendly, even if this is not true. Thus, it is important to try to talk to people, even if conversation does not come easily to a shy person.
Which one of the following assumptions is necessary for the argument's conclusion to be properly drawn?

A) It is important to be perceived as friendly and personable.
B) People who are outgoing are also friendly.
C) Talkative people are always friendly and personable.
D) People who are perceived as shy or quiet are often not friendly.
E) It is not important to talk to people if one is already perceived as friendly.