14.Total cost of a firm is opportunity cost that could have been used in alternative investmentA-TrueB-False15-Total Profit of a firm is calculated as:A-Total Revenue - Total CostB-Total Revenue - Variable CostC-Total Revenue - Fixed CostD-Total Revenue + Total Cost16.Examples of topics examined in Macroeconomic are:A-The total revenue and cost of a firmB-Inflation, unemployment, money supply, trade balanceC-How resources are allocatedD-The level of competition in the market17-The rate of change in aggregate/overall price level is known as:A-unemployment rateB-inflation rateC-interest rateD-None of the above