Initially, a banking system has an excess reserve of $160 million and the public holds $200 million cash. The balance sheet of the banking system is as follows:
Suppose $100 million is withdrawn from the banking system and held as cash by the public. What will the money supply be if the banks lend out all excess reserves?
A. $1 500 million
B. $1 700 million
C. $1 800 million
D. $2 300 million