According to the passage, the decline of good manners is more worrying becauseA．it leads t

According to the passage, the decline of good manners is more worrying because

A．it leads to more crime in society.

B．it can seriously affect our daily life. "

C．people view manners as old-fashioned.

D．rudeness on the street cannot be stemmed out.

请帮忙给出正确答案和分析，谢谢！