Concept:GNP stands for Gross National Product, a key measure of a country's economic output by its citizens, both at home and abroad.Explanation:GNP is the total monetary value of all final goods and services produced by a country's residents in a given period. It includes income earned from overseas investments and work, minus income earned by foreign nationals within the country. The formula is: GNP = GDP + Net Factor Income from Abroad. This indicator helps compare the economic performance and standard of living across nations. The other options—Gross National Price, Government National Plan, and General Needs Product—are not recognised economic terms and do not describe GNP.Answer:A. Gross National Product