【单选题】

The fact that blind people can "see" things using other parts of their bodies apart from their eyes may help us to understand our feeling about colour. If they can (1) colour differences then perhaps we, too, are (2) by colour unconsciously.

Manufacturers have discovered by trial and (3) that sugar (4) badly in green wrappings, that blue foods, are con- sidered (5) and that cosmetics (化妆品) should never be packaged (6) brown. These discoveries have grown into a whole (7) ofcolour psychology that now finds application in (8) from fashion to interior decoration. Some of our preferences are clearly (9) .Dark blue is the colour of the (10) sky and therefore associated (11) passivity and calm, while yellow is a day colour with associations of energy and incentive (刺激). For primitive man, activity during the day meant hunting and attacking, while he soon saw as red, the colour of blood and rage and the heat that came with (12) .And green is associated with passive defence and self- preservation. (13) have shown that colours, partly because of their physiological associations, also have a direct psy- chological effect. People (14) to bright red show a (an) (15) in heartbeat, and blood pressure; red is exciting. Similar exposure to pure blue has exactly the (16) effect; it is a calming colour.Because of its exciting connotations (涵义), red was chosen as the (17) for danger, but closer (18) shows that a vivid yellow can produce a more basic state of alertness and alarm, so fire engines and ambulances in some advanced communities are now (19) around in bright yellow colours that (20) the traffic dead (突然).
A．effected
B．affected
C．effects
D．efforts