AP Environmental Science

Answer: A - The total fertility rate in the United States peaked after World War II.

Key Takeaway: The total fertility rate is the average number of children that would be born to a hypothetical woman of child-bearing age over her lifetime if she were to experience the exact current age-specific fertility rates through her lifetime, and if she were to survive from birth through the end of her reproductive life. This rate peaked in the United States after GIs returned home from World War II. At that time, the total fertility rate in the United States was 3.8; it has since dropped to about 2.