Below is a table on the national income and production accounts of South Africa for 2020. Expenditure on GDP (including residual) 4 973 975 Primary income to the rest of the world 216 319 Current transfers to the rest of the world 75 619 Primary income from the rest of the world 122 120 Current transfers from the rest of the world 32 484 Source: Adapted from SARB (2021) Calculate the GNI at the following market prices: a. 5 068 174 b. 4 836 641 c. 4 879 776 d. 4 922 911