a. What do A, B, C, D, and E represent? A: B: C: D: E: b. If A=$500, B=$300, C=$50, D=$100, and E=$50, how much is the GDP? c. If government budget is balanced [government expenditures (G)=government taxes (T)=$50], how much is the saving?Q1. (3 marks) Consider the following circular flow of expenditures and income for the economy of Flatland in 2018. HOUSEHOLDS GOVERNMENTS FACTOR GOODS MARKETS MARKETS es REST A OF WORLD FIRMS