Concept:A nation exports agricultural produce mainly to earn income in foreign currencies from international buyers.
Explanation:When a country sells its farm products to other nations, it receives payment in foreign money, known as foreign exchange.
This foreign earnings help the nation pay for imported goods, settle international debts, and strengthen its economy.
Therefore, the primary purpose of exporting agricultural produce is to gain foreign exchange, not just to provide food, create local employment, or supply raw materials.
Employment and raw materials are more related to domestic uses, while foreign exchange is the key benefit of exporting.
Answer:C. earn foreign exchange