Which of the following is an example of a topic studied in macroeconomics? O The costs of production in a firm O How consumers react to higher gasoline prices O The growth in total output of an economyMarginal analysis involves looking at both the extra costs and benefits involved in a decision. O True O FalseWhich of the following best defines "capital" as a factor of production? O The money that the owners of a business reinvest from their profits. Instruments, machines, and buildings used in production. Financial assets used by businesses. C The knowledge and skills that people use in production of goods and services