Marked out of 15.00 You are given the following information about the economy of ABC Nation: The people and businesses in ABC Nation have bank deposits of $400 billion and hold $70 billion in notes and coins. The banks hold deposits at the ABC central bank of $4 billion and they keep $4 billion in notes and coins in their vaults and ATMs. Calculate: a) The monetary base. b) The quantity of money c) The banks' reserve ratio. Paragraph BIEE