select the key term that best matches with the definition provided. - The area of economics that deals with output, employment, incomes, or other activities in the aggregate - The process of controlling or directing a situation: also one of the four factors of production, with responsibility for decision making - Additional or extra, either positive or negative - Holding some variables constant, while letting specific variables change - One whose quantity changes as a result of a change in another (independent) variable A. Marginal B. Ceteris Paribus C. Dependent variable D. Management E. Macroeconomics