Economist Dr. Linda Harris argues that economic inequality has increased in developed nations over the past four decades. She attributes this primarily to technological change that rewards highly skilled workers while reducing demand for routine jobs.
Which data would most effectively support Harris's explanation for rising inequality?
Wages for workers with technical skills grew 80% since 1980 while wages for workers in routine manufacturing jobs remained flat, with automation reducing manufacturing employment by 40%
Some billionaires have accumulated vast fortunes
Tax policies have changed significantly since 1980
College enrollment has increased dramatically
Correct Answer: A
Choice A is the best answer. Shows both parts: skilled wages up, routine wages flat, and automation reduced routine jobs.
- Context clues: Harris blames tech that "rewards skilled" and "reduces demand for routine."
- Evidence evaluation: 80% skilled wage growth + flat routine wages + 40% job loss proves both claims.
- Verify: Multi-part evidence confirms the complete explanation.
💡 Strategy: Multi-causal explanations need evidence addressing each component.
Choice B is incorrect because billionaire wealth doesn't prove the technological mechanism. Choice C is incorrect because tax policy is an alternative explanation, not support for Harris's. Choice D is incorrect because enrollment doesn't directly address the wage gap mechanism.