Answer:
Option (a) is correct.
Step-by-step explanation:
The federal reserve is the central bank of United States. It is responsible for all the changes occured in a nation's monetary policy and it regulates all the banks operates in a nation.
Federal reserve uses various monetary policy tools to control the money supply in an economy. Some of the tools are as follows:
(i) Cash reserve ratio (CRR)
(ii) Statutory liquidity ratio
(iii) Open market operations(OMO)
(iv) Repo rate
(v) Reverse repo rate
(vi) Bank rate
Functions of Fed:
(i) Regulation of financial institutions
(ii) Banker's bank
(iii) A lender of last resort
(iv) Implement monetary policy