根据短文内容，从方框内所给的选项中选出能填入空白处的最佳选项。选项中有一项是多余选项。
There are many colors in nature.I think you'll say "no". But I am afraid you are wrong. If you don't believe it, you may do a small test.
Then, cover one box with a red piece of paper the other with a white piece of paper. Now hold the boxes with your hands one by one. It is certain that you'll think the red one is a little heavier.
Why do you think so?So he did many tests and at last he got the result.That is to say, every color has its own weight in our mind.
The scientists told us that colors also have smell. Can you smell colors? Of course not. Then why did the scientists say so?It reaches our brain through sense organs(器官). According to this research,scientists said that people accept the colors they like,and refuse the colors they hate. So your body and mind will be healthy by using the colors you like. Or you'll be nervous or even get ill. For example, you like blue and hate red. If you stay in a room with red windows, wallpaper, tables and chairs for two hours,you'll feel you have been there for four hours.
But if the room is blue, you'll feel you have been there for only an hour. And if a person walks out of a blue room and into a red room, his body temperature will rise.
A.But do you believe that a color has weight?
B.Colors are always the same at any time and any place.
C.First,put two objects with the same weight into two boxes.
D.That means our body temperature will change with different colors.
E.A scientist found that different colors have different weight in a man's mind.
F. That is because every color stands for a kind of light with a certain wavelength（波长）
