Why is pink or purple a color for girls and blue or brown for boys？（16）___To the Egyptians，green was a color that represented the hope and joy of spring，while for Muslims，it means heaven．Red is a symbol of good luck in many cultures．In China，children are given money in a red envelope to bring good fortune in the New Year．For many nations，blue is a symbol of protection and religious beliefs．（17）___

People's choice of colors is also influenced by their bodies'reactions（反应） toward them．Green is said to be the most restful color．（18）___People who work in green environment have been found to have fewer stomach aches．

（19）___ So many decorators will include different shades of red in the restaurant．Similarly，many commercial websites will have a red"Buy Now"button because red is a color that easily catches a person's eye．

Blue is another calming color．Unlike red，blue can cause people to lose appetite．（20）___

The next time you are deciding on what to wear or what color to decorate your room，think about the color carefully．

A．It has the ability to reduce pain and relax people both mentally and physically．

B．Red can cause a person's blood pressure to rise and increase people's appetites（食欲）．

C．The answer depends largely on cultural values as well as personal experiences．

D．Red can cause people to be excited and encourage them to make a purchase．

E．Greek people often wear a blue necklace hoping to protect themselves against evils．

F．So if you want to eat less，some suggest that eating from blue plates can help．

G．Because girls like pink or purple while boys blue or brown．