Which of the given options is the most logical sequencing of the following sentences to form a meaningful paragraph?
1. In 2019, the Event Horizon Telescope captured the first-ever image of a black hole's event horizon.
2. He theorized that black holes, with their immense gravitational pull, create the most extreme form of this curvature.
3. This observation matched Einstein's predictions, confirming that space-time warps in the precise way described by Einstein.
4. Einstein's predicted about space-time curvature in his General Theory of Relativity.
Show answer & explanation
Correct answer: B
Explanation
Correct Answer
4-2-1-3
Explanation
Structural Flow: To assemble a logical paragraph, the sentences must establish a historical timeline and a clear connection between a scientific theory and its eventual physical confirmation.
Opening Statement: Sentence 4 is the most effective opening statement because it introduces the primary scientific concept of the paragraph: Einstein's General Theory of Relativity and the concept of space-time curvature.
Elaboration: Sentence 2 immediately follows Sentence 4 by using the pronoun "He" to refer directly back to Einstein and expanding on how black holes relate specifically to the "this curvature" mentioned at the end of Sentence 4.
Modern Event: Sentence 1 introduces a chronological shift to a real-world scientific breakthrough in 2019, where the Event Horizon Telescope successfully captured the first visual proof of a black hole.
Concluding Connection: Sentence 3 wraps up the sequence by using the demonstrative phrase "This observation" to directly reference the 2019 image from Sentence 1, completing the narrative arc by confirming that the observation matched the original predictions made in Sentences 4 and 2.
Key Points
Word: 4-2-1-3
Meaning: The correct structural arrangement of sentences that carries the reader smoothly from a theoretical premise to its modern physical verification.
Grammatical Role: Sequential arrangement code (functions as the correct organizational pattern for the paragraph coherence task).