Answer:
The answer is B.
Step-by-step explanation:
Contractionary monetary policy is a policy adopted by Central banks when the economy is heating up i.e when the economy is moving faster than it can withstand. So this is used to slow down the economy.
There is always a higher inflation and money supply is high when the economy is heating up.
So to contract or slow down the economy, the central banks increase the interest rate, this increase in interest rate discourages borrowing from households, businesses and even commercial banks and when there is a low demand for borrowed fund, money supply (total quantity of money in circulation) decreases.