POSS What is the difference between Gross Domestic Product (GDP) and Gross National Product (GNP)? O GDP is measured before inflation; GNP is measured after inflation. O GDP is an annual measure of total output produced; GNP is a measure ot total annual income earned by a country's citizens. O GDP is a measure of total output before depreciation is computed; GNP is a measure after depreciation is computed. O GNP is an annual measure of total output produced; GDP is a measure of total annual income earned by a country's citizens