GMAT Sentence Correction
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Source: Manhattan
Level: 3
Because memory weakens with age, for the experiment to be valid, it is important that a group to be tested for drug induced memory loss be compared with a control group.
- A to be tested for drug induced memory loss be compared with
- B being tested for memory loss induced by drugs are compared with
- C being tested for drug induced memory loss should be compared to
- D being tested for drug induced memory loss are to be compared to
- E that is to be tested for drug induced memory loss are to be comparable with