A、The group in a messy storeroom. B、The group in a nice office. C、The group in a poorly designed living room. D、All of the above

At the University of Kansas art museum, investigators tested the effects of different colored walls on two groups of visitors to an exhibit of paintings. For the first group the room was painted white; for the second, dark brown. Movement of each group was followed by an electrical system under the car pet. The experiment revealed that those who entered the dark brown room walked more quickly, covered more area, and spent less time in the room than the people in the white environment. Dark brown stimulated more activity, but the activity ended sooner. Not only the choice of colors but also the general appearance of a room communicates and influences those inside. An other experiment presented subjects with photographs of faces that were to be rated in terms of energy and well-being. Three groups of subjects were used; each was shown the same photos, but each group was in a different kind of room. One group was in an "ugly" room that resembled a messy storeroom. Another group was in an average room   a nice office. The third group was in a tastefully designed living room. Results showed that the subjects in the beautiful room tended to give higher ratings to the faces than did those in the ugly room.