The correct answer is: C. PSRQ
The sentence “The Hound of Baskervilles remains an unsolved mystery” is the conclusion of the passage. The sentence “Some people spoke of seeing a huge, shadowy form a Hound at midnight on the moor” provides evidence for the conclusion. The sentence “But they spoke of it in tones of horror” provides additional evidence for the conclusion. The sentence “Nobody had actually seen the hound” provides evidence that contradicts the conclusion. The sentence “This shadowy form did not reveal any details about the animal” provides additional evidence that contradicts the conclusion.
Therefore, the correct sequence of the sentences is:
- S6: The Hound of Baskervilles remains an unsolved mystery.
- P: Some people spoke of seeing a huge, shadowy form a Hound at midnight on the moor.
- Q: But they spoke of it in tones of horror.
- R: Nobody had actually seen the hound.
- S: This shadowy form did not reveal any details about the animal.
The other options are incorrect because they do not follow the logical order of the sentences. For example, option A (SPQR) has the sentence “Nobody had actually seen the hound” before the sentence “Some people spoke of seeing a huge, shadowy form a Hound at midnight on the moor.” This is not
a logical order, because the sentence “Nobody had actually seen the hound” provides evidence that contradicts the conclusion, which is that the Hound of Baskervilles is an unsolved mystery.