Why are economists concerned with GDP?

Gross domestic product tracks the health of a country's economy. It represents the value of all goods and services produced over a specific time period within a country's borders.

Explanation:

Economists can use GDP to determine whether an economy is growing or experiencing a recession.

GDP measures the total market value (gross) of all U.S. (domestic) goods and services produced (product) in a given year. When compared with prior periods, GDP tells us whether the economy is expanding by producing more goods and services, or contracting due to less output.

b. she founded a new dynasty that ruled egypt for generations.

i believe the answer is a