题目内容：

More than half of American teenagers and young adults volunteered last year, and the best way to join in this group turns out to be peer pressure: Three quarters of people ages 13 to 22 whose friends volunteer regularly also do so, which is nearly twice the number of those who participate in voluntary activities based on their concern about particular social

problems. Those were the key findings of new research results published by DoSomething. org, a group working to get young people involved in social change.    "

The study, based on data from 4, 363 young people, found that the most common form of support by volunteers was assistance with fundraising. 38 percent of those in the survey said they helped with solicitations (募捐)，leading the study's authors to conclude: "Young people are a secret weapon. A persuasive donation speech from an enthusiastic teen is a way more influential than a cold call or that newsletter you were thinking about sending."

The study also found a gender (性另ij) divide in volunteer activities. Boys were more likely to undertake physical activities such as environmental cleanup or working with younger children in sports, while girls were more likely to help the homeless and other needy people or to work with arts groups.

The researchers say the responses to the survey pointed out many ways that nonprofits can do a better job of getting young people to volunteer. Among their suggestions:

Offer ways to socialize. The very first thing that many young people think of in choosing volunteer activities is having a chance to interact with friends, especially those of the opposite sex.

"Think of volunteering like a high-school party," the researchers write. "Volunteering, like everything else, is about joining in, making friends, and having a good time."

1.The passage above mainly talks about ______    .

A. what a research about voluntary activities finds out

B. why young people take part in volunteer work

C. how young people can be persuaded to volunteer

D. where most young volunteers would like to work

2.Most young people are likely to take part in voluntary activities because _____.

A. they are concerned about particular social problems

B. their friends of the same age volunteer

C. they want to influence more people to volunteer

D. their assistance can help those in need

3.At the end of the passage, the writer would probably continue to list _____.

A. more ways for young people to socialize

B. more reasons to get young people to volunteer

C. more tips on getting young people involved in volunteering

D. more differences between different genders in volunteering