If your answer is correct , you will get brainliest is the total value of goods and services in a nation's economy in a year? a. gdp b. un c. nato d. opec

Your answer would be GDP (Gross Dosmestic Product).

The Gross Domestic Product (GDP), is the monetary value of all goods and services performed IN a nation in one year. GDP measures the economic strength of a nation. It is computed by multiplying the quantity of all goods and services by its price.

using the scientific method.