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The importance of sleep is often overlooked by students when they are preparing for exams. Research has consistently shown that sleep deprivation greatly reduces the ability to recall the material learn. Hence, cutting down on sleep to study longer hours can be counterproductive. Which one of the following statements is the CORRECT inference from the above passage?
Sleeping well alone is enough to prepare for an exam. Studying has lesser benefit.
To do well in an exam, adequate sleep must be part of the preparation.
Students are efficient and are not wrong in thinking that sleep is a waste of time.
If a student is extremely well prepared for an exam, he needs little or no sleep.
First statement is ridiculous, third and fourth are contradictory to what is given in the passage. Second state is correct