[单选题]【概括大意】Volunteering gives you an opportunity to change lives, including your own. If you’re feeling frustrated or overwhelmed by the news of a disaster, volunteering to help can be a great way to cope. If you’d like to support a cause but can’t afford to donate money, you can donate your time instead. Helping others in need is such an important part of the American way of life that many high schools require their students to spend a certain number of hours volunteering in order to graduate. Volunteering is a great way to learn new skills — from working as part of a team to setting and reaching goals. It gives you a chance to discover what kinds of things you’re best at and enjoy the most. A volunteer job that you love can even help shape your ideas about your career goals.The main idea of this paragraph is __________. A Support a health-related cause B Teach in Countryside C Volunteer in Special Festival D Goodness of Volunteering