根据短文内容，从短文后的选项中选出能填入空白处的最佳选项，选项中有两项为多余选项。
It’s natural to greet friends with a smile and a wave. ___________ But what happens if yourface and body send mixed messages? Would someone be more likely to believe the look on your face or the way you hold your body?
Scientists have recently tackled these questions. They found that when a person is looking at your face, she might not believe what she sees of your body language doesn’t  match the feeling that your face shows.   Previously, they had found that the tone of a person’s voice can be more important than the words that are spoken. For example, most people tend not to believe a person who says in a flat voice, “I’m so excited.”
When it came to emotions conveyed by facial expressions and body language, most scientists suspected that the face was more important. To test if this was true, psychologists from the Netherlands and Boston showed people a number of pictures of isolated faces and isolated bodies(with faces blurred out)that showed anger or fear. ________
An angry face had low eyebrows and tight lips. A scared face had high eyebrow and a slightly open mouth. _________  A scared body had arms forward and shoulders square, as if ready to defend.
These results told the researchers that mixed signals can confuse people. Even when people pay attention to the face, body language subtly influences which emotion they read.
     And if you want to be understood, it helps to avoid sending mixed messages.
Studying such mixed messages is nothing new for scientists.

A．So, your body language is important for telling people how you feel.

B．Scientists feel new to study the mixed message that confuses people.

C．An angry body had arms back and shoulders at an angle, as if ready to fight.

D．Body language can sometimes be misunderstood in different culture backgrounds.

E. When you do this, your face and body work together to show your friends that you’re happy to see them.
F. They also showed pictures in which angry or scared faces were paired with angry or scared bodies.