Concept:GDP is the total market value of all final goods and services produced in a country during a year. It can be measured by adding gross value of income, product taxes, and then subtracting subsidies.Explanation:Gross value of income represents earnings from production. Product taxes (such as GST) increase the market price of goods, so they are added. Subsidies lower the market price, so they are subtracted. Thus, the correct formula is: GDP = Gross value of income + Product taxes − Subsidies. This corresponds to option A. The expenditure approach gives GDP=C+I+G+(X−M), but the question directly asks for the representation using gross value of income.Answer:Option A: GDP = Gross value of income + Product taxes - Subsidies