Question

on average, people in high - income countries ________ than people in low - income countries.
a. are exposed to more severe diseases
b. have a shorter life expectancy
c. are taller
d. are subject to a higher infant mortality rate

Explanation:

• Option A: High - income countries generally have better healthcare systems, so people are less likely to be exposed to more severe diseases due to better prevention and treatment.
• Option B: High - income countries have better living conditions, healthcare, and nutrition, which lead to a longer life expectancy, not a shorter one.
• Option C: In high - income countries, people have better access to nutrition (especially during childhood and adolescence) which is a major factor in height. Adequate intake of proteins, vitamins (such as vitamin D), and minerals (such as calcium) from a young age contributes to better growth and development, resulting in taller stature on average compared to low - income countries where malnutrition may be more prevalent.
• Option D: High - income countries have better maternal and child healthcare, so the infant mortality rate is lower.

Answer:

C. are taller