Which of the following gives the main idea of the passage? ( )(本题2.5分)
A、 Everybody in America takes a daily bath.
B、 A bath a day keeps the doctor away.
C、 Taking baths has become popular in the world.
D、 Bathing has become easier and cheaper.
出自:西安石油大学-石油工程技术-大学英语I(上)