LSAT 159 | Section 2 | Reading Comprehension: Q15

RC Question 15 Explanation

QUESTION TEXT: Which one of the following most accurately expresses …

DISCUSSION: The passage presents two competing explanations for the universe’s accelerating expansion: dark energy and modified gravity. It highlights problems with both and the author stays neutral.

___________

1. This captures only the first theory, but the passage emphasizes two theories.
2. The passage never claims little evidence for dark energy. It presents issues with specific versions of the theory, not a lack of evidence.
3. Only the alternative gravity theory challenges relativity. Dark energy theories generally keep relativity intact.
4. CORRECT. The passage describes two theories, both imperfect as each poses challenges to established physics.
5. The passage doesn’t favor the gravity model or endorse a best explanation.