The federal funds rate is the interest rate that banks charge each other for overnight loans. It influences monetary policy and the economy. Therefore, the correct answer is option D. ;
The federal funds rate is the interest rate that banks charge each other for overnight loans, and it significantly influences economic activity in the U.S. economy. The rate is managed by the Federal Reserve to control inflation and promote economic growth. Therefore, the answer is option D.
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D. the interest rate that banks charge each other for overnight loans ;