听力原文: Andrew Carnegie was born in Dunermline, Scotland, on November 25, 1855. The son
Many persons of wealth have contributed to charity, but Carnegie was perhaps the first to state publicly that the rich have a moral obligation to give away their fortunes. In 1889 he wrote The Gospel of Wealth, in which he asserted that all personal wealth beyond that required to supply the needs of one's family should be regarded as a trust fund to be administered for the benefit of the community. During his lifetime, Carnegie gave away over $ 350 million. He died in Lenox, Massachusetts, on August 11,1919.
What is the passage mainly about?
A.Carnegie's career.
B.Carnegie's contribution.
C.Carnegie's life.
D.Carnegie's fortune.