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2,The eels' dramatic changes in behavior, morphology, and physiology that enable them to switch from living in freshwater habitat to open ocean highlight the operation of strong selective pressures. But why do they leave their homes in freshwater ponds where they grew up and lived most of their lives? Their one-way, once-in-a-life-time migrations to their Sargasso Sea spawning grounds can't be to find a better feeding ground, or to escape competition. However, I suspect what the behavior accomplishes superbly is that the adults, which are predators, do not come in contact with and feed on their own young. Is it a mechanism that has evolved because it reduced predation on themselves?


However, I suspect what the behavior accomplishes superbly is that the adults, which are predators, do not come in contact with and feed on their own young." (Paragraph 2)

How does the author's use of the first-person pronoun "I" affect the reader's understanding of the information presented in this sentence?
Answer options with 4 options
1.
It suggests that the author feels personally committed to the task of uncovering the mysteries of eel migration.
2.
It emphasizes the author's authority as an expert and shows that he has done original research on eel migration.
3.
It casts doubt on the details the author reveals about eel migration because they may be only his personal opinion.
4.
It clarifies that this explanation of eel migration is based on the author's own educated guess rather than proven fact.