Sentence 5: Consider an example in which both drivers are insured under the no-fault plan.

what correction should be made to this sentence ?

1. insert a comma after example
2. change drivers to driver
3. change are to is
4. change insured to insuring
5. no correction is necessary

5?

Yes, 5. :-)

To determine the correct answer, let's analyze the sentence structure and identify any grammatical errors.

"Consider an example in which both drivers are insured under the no-fault plan."

Upon analyzing the sentence, we can see that the subject is "both drivers," the verb is "are insured," and the prepositional phrase is "under the no-fault plan." The subject, "both drivers," is plural, so the verb "are" is appropriate. Furthermore, the adjective "insured" properly modifies the subject "drivers."

After considering the structure and grammar of the sentence, we can conclude that no correction is necessary. Therefore, the correct answer is option 5: no correction is necessary.