Answer:
A) by introducing the check tax, the government actually made the people use more cash and less checks in order to avoid paying the tax. This lead to an increase in the currency deposit ratio, which means that people have more cash and less money deposited in the banks.
B) since the currency deposit ration decreased, banks had less money to borrow, which in turn decreased the money multiplier and the banks' ability to create money.
C) carrying out this policy was like engaging in a contractionary monetary policy which was a terrible idea. The government should have done the opposite and expand the money supply and the banks' ability to create money in order to boost economic growth.