We can infer that: A. The GDP was $450 billion in 2008. NDP was $450 billion in 2008. $500 billion was the GDP in 2008. D.
A measure of total production is a country's Gross Domestic Product (GDP). In more precise terms, it is the total monetary value of all finished goods and services produced in a nation or region over a certain time frame.
To know more about billion visit:
https://brainly.com/question/14260274
#SPJ4