This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to be more perceptive
Learn about body language.
Ninety percent of human communication is non-verbal. A person's body language can be voluntary or involuntary, and it is both genetic and learned.

Pick your answer from: (A). Your body language can also convey a variety of messages to your partner about your thoughts, but as a result, your partner will most likely feel uncomfortable with that body language. People involved in a relationship often interpret unwanted body language as part of either an honest regard or affection.; (B). In part, the body communicates when the needs of those around it are met. In other words, it is taught when the needs and body language of others are met.; (C). Understanding your body language helps you focus and complete the task more quickly, because you'll be able to identify and interpret body language cues and absorb what someone is saying. Physical body language includes making eye contact, sitting upright, and checking the other person's body language.; (D). It is a strong indicator of how a person feels, but it can vary from one culture to the next. Those discussed in this article are indicators of body language in western cultures.;
The answer is:
(D).