An inference with a limited scope

A fictional English passage says that a university library opened earlier during examination week after receiving student requests for quiet morning space. The passage does not say that every student used the library, that grades improved or that evening hours were reduced. A question asks for the best-supported explanation for the earlier opening. One learner selects a claim about higher examination scores because it sounds beneficial. Another identifies the stated student request and its connection to the schedule. Students must distinguish an explicit reason, a reasonable but unproved possibility and a claim contradicted by nothing merely because the passage is silent. The exercise supplies its complete text and does not require knowledge of an actual institution.