The first paragraph introduces a central idea of the passage by demonstrating the extensive impact of modern technology on the world. How does Paragraph 4 function in regards to this central idea?

Question

A.
Paragraph 4 explains the importance of geographic location on humans, which develops another central idea of problems with light use by heavily industrialized societies.
B.
Paragraph 4 explains a specific effect of modern technology on humans, which then develops another central idea of light in particular impacting human health.
C.
Paragraph 4 explains the consequences of political differences between various nations, which then develops another central idea that more civilized nations use a large amount of electricity.
D.
Paragraph 4 explains that most densely populated areas are more likely better illuminated, which then develops another central idea that the western hemisphere can be better seen by astronauts.

Answer 1

B. Paragraph 4 explains a specific effect of modern technology on humans, which then develops another central idea of light in particular impacting human health.