In answer choice (D) it gives us, "vs",phases to stand for per capita GNP and human indicators... and doing so is a hugh distortion of both terms because it wrongly casts the whole passage as a balanced debate, which authoer does not do in the passage. He takes one side and favors it..
Unlike (D) compare to (C), the title shows us passage's topic, scope and purpose. And also word "Preferability" alludes to the author's persuasive purpose...
Hope that helps!!