Which position statement is most effective for an essay focused on e-books' impact on comprehension and retention compared to physical books?

Choice C directly takes a position on the essay’s focus: it argues that physical books support comprehension and retention, while distractions from e-books may interfere with focus. Choice B also mentions comprehension and retention, but it is less specific about why the formats differ. Choices A and D focus more on tradition or sensory experience than on the comparison of comprehension and retention.

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