Which answer is measured by the gross domestic product (GDP)?
1)the number of products divided by the population

2)the total value of all products produced in a year

3)foreign products sold in the domestic market

4) domestic products sold overseas

2)the total value of all products produced in a year

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.

1960: wilma rudolph was the first woman to win three olympic gold medals in track and field at one olympic games. she was an american sprinter from tennessee, she was acclaimed the fastest woman in the world. she was among the most visible black women in america and abroad. she became a role model for black and female athletes. she was also known as a civil rights and women right's pioneer.

1973: billy jean king is an american former number one tennis player. she represented the united states in the federal cup and the wightman cup. for three years she was the usa's captain in the federation cup. she defends gender equality and has been a pioneer for equal and social justice. at the age of 29, she won "the battle of sexes" tennis match against the 55 year old bobby riggs. she was also the founder of women's tennis association and the women's sports foundation.  

1983: tamara mckinney becomes the first american female skier to win the alpine world cup overall championship top. she was the only american to hold that title for a quarter century until 2008.

1992: manon rhéaume, from canada,   becomes the only woman to start in a national hockey league game in an exhibition game for the tampa bay lightning . she played on the canada women's national ice hockey team winning gold medals in 1992 and 1994. and silver medals in 1998. manon marked the first time a woman appeared in a regular season professional game with her first appearance against the salt lake golden eagles.

2013: serena williams won 78 of 82 matches at the age of 31. she is an american professional tennis player. she reached the number 1 ranking for the first time on july, 8, 2002. at the age of 16, she played against karsten braasch the battle of sexes. she was the highest paid female athlete in 2016. she is a unicef ambassador .