【单选题】

{{B}}Questions 1 to 5 are based on the following conversation.{{/B}}

A、
A、About 40% of theAmerican children regard themselves as shy.
B、Now one out of twoAmerican think of themselves as a shy person.
C、About two out of every five people used to be shy people.
D、The number of shy people inAmerica is in steady decline.