Inventories are unsold stock and form part of capital/investment, so (A)-(III).
Rent is a factor payment made for the use of land, so (B)-(IV).
GNP = GDP + Net Factor Income from Abroad (NFIA), so (C)-(II).
NNP = GNP - Depreciation, so (D)-(I).
Correct matching: (A)-(III), (B)-(IV), (C)-(II), (D)-(I).