Option 1 -> National Disposable Income includes net current transfers from rest of the world.
Option 2 -> Private Income focuses on domestic private sector income, not specifically on international transfers.
Option 3 -> National debt interest refers to interest payments on government debt, unrelated to foreign transfers.
Option 4 -> Current transfers from government are domestic transfers like subsidies and social benefits.
Hence, National Disposable Income -> National Disposable Income (NDI) is calculated as NNP at market prices + Net current transfers from rest of the world. Current transfers from abroad include gifts, remittances, foreign aid, and grants which are added to national income to determine the total income available for disposal by residents of the country. This makes NDI different from National Income as it accounts for the net inflow or outflow of transfer payments from foreign countries. -> correct