The correct answer is: B. PRSQ
The first sentence, S1, is a question that asks why sharks attack. The second sentence, P, provides a possible explanation: sharks may attack because they perceive their victim as a threat. The third sentence, R, provides an example of how sharks may try to warn their victims before attacking: they may make “snork bumps” or “open-mouthed slashings.” The fourth sentence, S, provides another possible explanation for shark attacks: sharks may attack in murky water because they cannot see clearly and may mistake their victim for a prey animal. The sixth sentence, S6, provides an example of how a shark attack may be generated by a swimmer who unwittingly interrupts a courting procedure, trespasses in a shark’s territory, or cuts off its escape route.
The correct sequence of sentences is:
- S1: Why then, do sharks attack?
- P: “The only way a shark can warn you is with its mouth and teeth,” says Baldridge.
- R: Snork bumps and open – mouthed slashings are ways of trying to frighten you off.
- S: But the most persuasive explanation is that they perceive their victim as a threat.
- S6: Attacks of this kind may be generated by a swimmer who unwittingly interrupts a courting procedure, trespasses in a shark’s territory and cuts off its escape route.
The other options are incorrect because they do not follow the logical order of the sentences. For example, in option A, the sentence P is followed by the sentence S6. However, the sentence P provides an explanation for why sharks attack, while the sentence S6 provides an example of how a shark attack may be generated. These two sentences do not follow each other logically.