I’m sorry but there is no passage? :(
A
It’s the most straightforward so that is probably the answer. I can’t see how you could get a more accurate answer other than literally timing each board
Explanation: <em>Gross Domestic Product, or GDP, is the sum total of all the goods and services produced within a country. </em>
I think it is population.
Try reading the book, I know that will have ALL of the answers you will need to be successful.