Select the word that best fits the definition: economic activity characterized by fluctuating levels of growth and decline a. job security b. interest rate c. economy d. business cycle

The D) Business Cycle is economic activity characterized by fluctuating levels of growth and decline. Job security is when individuals are stable and secure in their jobs. Interest rates are rates set by central banks and banks generally for the rate of return on deposits or securities held by the bank. And an economy is the name given to activity relative to business, governments, and societies relative to money  and development.