Population Pyramids Indicate Demographic Stages

Steps:

• Examine the shape of each pyramid: broad base suggests high birth rates (young population), narrow base indicates aging (low birth/death rates).
• Compare country 1 and 2: identify which has expansive (developing) vs. stationary/constrictive (developed) pyramid.
• Match shapes to demographic transition model stages: early stages have pyramid-like shapes, later stages are more rectangular.
• Select option describing the correct stage difference or trend between countries.

Why B is correct:

• B accurately identifies country 1 as in early demographic transition (high fertility/mortality) and country 2 as in late stage (low rates, aging population), per standard pyramid interpretation.

Why the others are wrong:

• A mislabels both as developed, ignoring expansive base in country 1.
• C reverses the countries' stages.
• D ignores age distribution, focusing on irrelevant total population.

Not enough information: Pyramids and choices not described.

Final answer: B