easy · GMAT Verbal

Which statement must be true on the basis of these sentences?

1. Wei turned in the permission slip before anyone else.
2. Every student in the whole school turned in a permission slip.
3. As a student in that class, Wei turned in a permission slip.
4. Ms. Okafor’s class is going on a field trip to a museum.
5. Wei did not turn in a permission slip.

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