LSAT 159 | Section 2 | Reading Comprehension: Q18

RC Question 18 Explanation

QUESTION TEXT: The primary purpose of the last sentence of the …

DISCUSSION: The last sentence explains that if gravity behaves differently at very large distances, then measurable effects should also appear within the solar system. This makes the theory easier to test than the dark energy models.

___________

1. No results are given. The sentence is hypothetical.
2. CORRECT. The sentence highlights testability as a criterion and explains why the second theory may be easier to test.
3. It doesn’t discuss obstacles or resistance.
4. Too far. It doesn’t actually propose an experiment, just that it can be tested.
5. Like D, this goes too far. There’s no technical requirements detailed, just that the theory may be testable.