Which of the following is included when calculating National Income?

National Income includes factor income earned by residents from within the country and abroad. Remittances or income earned by Indians working abroad and sent back to India is counted as Net Factor Income from Abroad (NFIA) and is added to national income. Lottery winnings (A) are transfer payments, not earned income → excluded Milk purchased by dairy shop (B) is an intermediate good, used for resale/processing → not included to avoid double counting Interest on national debt (C) is a transfer payment made by the government → excluded D is the only option representing factor income, hence included