If a country has low total dependency but households still face high economic burden, which reason is most logical?

Correct answer: Many working-age people may be unemployed or low-income

The total dependency ratio compares people in dependent age groups, commonly children and older persons, with people of working age. A low ratio means that the number of age-based dependents is relatively small compared with the working-age population. It does not tell us whether working-age people actually have jobs, earn enough, or can support household needs. Employment conditions, wages, prices, health costs, and family responsibilities also affect economic pressure.

Thus, option A is the most logical explanation. Many working-age adults may be unemployed, underemployed, or earning very little, so a numerically favourable age structure may still produce serious household hardship. Option B makes an unjustified assumption that low dependency guarantees high income. Option C ignores the costs of raising children and caring for older people, while option D incorrectly separates population structure from household economics. The ratio is useful but incomplete.