The federal reserve has conducted policy by setting a target for the federal funds rate. The appropriate response is option B.
The federal funds rate is the term used to describe the interest rate which banks charge other banks when they lend them money on an overnight basis (usually, extra funds that they have on hand in their reserve balances).
The FOMC's target interest rate is known as the federal funds rate. This is the overnight borrowing and lending rate between commercial banks for their surplus reserves. Short-term interest rates on credit cards and consumer loans can be influenced by the federal funds rate.
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