【单选题】

In general, people talk about two groups of colors: warm colors and cool colors. (1) in psychology think that there are also two (2) of people: people who prefer warm colors and people who prefer cool colors.

The warm colors are red, orange and yellow. (3) there are warm colors and a lot of light, people usually want to be (4) . People think that red, (5) , is exciting. People who like to be with (6) like reD、The cool colors are green, blue and violet. These colors, (7) warm colors, are relaxing. Where there are cool colors, people are usually (8) . People who like to spend time (9) often (10) cool colors.
Red may he exciting, but one researcher says that time seems to pass (11) in a room with warm colors than in a room with cool colors. He thinks that a warm color, such as red (12) orange, is a good color for a (an) (13) or restaurant. People who are relaxing or eating do not want time to pass (14) .Cool colors are better for offices or factories if people who are working there want time to pass quickly.
Researchers do not know (15) people think some colors are warm and others cool. (16) , almost everyone (17) that red, orange and yellow are warm and that green, blue and violet are cool. Perhaps warm colors (18) people of warm days and the cool colors remind them of cool days.Because in the north the sun is low in winter, the sunshine seems quite blue.Because the sun is (19) during summer, the hot sunshine (20) yellow.
A．alone
B．lazy
C．together with others
D．lonely