Answer:
2)the total value of all products produced in a year
Step-by-step explanation:
The purpose of GDP calculation is to measure a country's economic productivity throughout the year. It is counted by calculating the market value of all Goods and services that produced by people in that country within a year.
Why other options are wrong:
1. the number of products divided by the population
This is used to calculate GDP per capita. It's different than the actual GDP itself.
3. foreign products sold in the domestic market
This is what we usually refer to as 'Import' , not GDP.
4. domestic products sold overseas
This is what we usually refer to as 'Export', not GDP.