Which of the following are used by economists to define and measure economic growth?

Explanation: Economic growth is an increase in the production of goods and services over a specific period. It can also be defined as an increase in the inflation-adjusted market value of the goods and services produced by an economy over time. It can be measured as a percentage increase in real gross domestic product. It can also be measured as the total income earned by the people of a country via their involvement in an economy's production process.

1. state-issued photo ids. provide them for free for those who can't afford them.

2. the system we have seems to be working nearly perfectly. seems like about 31 cases per billion votes cast

3. the national policy for hiring new employees which requires proof of eligibility to work. there are something like 20 types of identification which can be used for this.

answer; i believe that the correct answer is ( rivers);