Explain the argument weber makes in the Protestant Ethic and the Spirit of Capitalism

Your answer should include
a) explain what Weber meant by the Spirit of Capitalism
b) explain what Weber means by the Protestant Ethic especially the role of the Protestant reformation in changing key social attitudes which were important for modern (rational) capitalism.
c) How were the Protestant Ethic and the Spirit of Capitalism connected, according to Weber. That is, Why does he call his book length study The Protestant Ethic and the Spirit of Capitalism?