To find the percentage of the world's population that Asia encompasses, let's consider each option carefully.
Option A: 60%
Option B: 30%
Option C: 80%
According to various demographic statistics and reliable sources, it's widely recognized that Asia accounts for a significant portion of the global population. When we evaluate each of these options in terms of what we know about population distributions, the correct choice becomes evident.
Starting with Option B (30%): Given the vast population sizes of countries like China and India, each housing over a billion people, it seems highly unlikely that Asia, as the largest and most populous continent, would encompass only 30% of the world's population. This option underestimates Asia's demographic dominance.
Considering Option C (80%): Although Asia has a substantial population, this option overestimates the actual proportion. While Asia does hold the majority, it is not as high as 80%. Such a large percentage would imply an even larger discrepancy between Asia and the other continents than what current data shows.
Evaluating Option A (60%): This percentage aligns much more accurately with demographic data, accounting for the populous nature of Asia without exaggerating it. It represents a realistic and widely accepted figure by various demographic studies.
Thus, considering all the demographic information, we conclude that the percentage of the world's population that Asia encompasses is:
60%
Therefore, the correct answer is:
A. 60%
