Which of the following does NOT enter GDP?a.public serviceb.public educationc.life expectancyd.national defense

To determine which of the options does NOT enter GDP, we need to understand what GDP represents. GDP stands for Gross Domestic Product and it measures the total value of all goods and services produced within a country's borders in a specific time period.

a. Public service: Public services, such as healthcare and transportation, are included in GDP because they are considered as economic activities that contribute to the overall production and consumption within the country. Therefore, public service enters GDP.

b. Public education: Public education is also considered as a service provided by the government, and it contributes to the overall production and consumption within the country. Therefore, public education enters GDP.

c. Life expectancy: Life expectancy is not a direct economic activity or a measure of production. It is a demographic indicator that represents the average number of years a person is expected to live. As it is not directly related to economic production, life expectancy does NOT enter GDP.

d. National defense: National defense refers to the military and defense-related activities of a country. These activities are considered as economic activities that contribute to the overall production and consumption within the country. Therefore, national defense enters GDP.

In conclusion, the option that does NOT enter GDP is c. life expectancy.