Digital SAT Reading and Writing Section

Punctuation in Nonessential Clauses

Medium Standard English Conventions Conventions Of Punctuation

Read the following sentence carefully:

The professor, who had been teaching for over 30 years was excited to introduce a new curriculum.

Which of the following options corrects the punctuation in the sentence?

The professor who had been teaching for over 30 years, was excited to introduce a new curriculum.

The professor who had been teaching for over 30 years was excited, to introduce a new curriculum.

The professor, who had been teaching for over 30 years, was excited to introduce a new curriculum.

The professor who had been teaching for over 30 years was excited to introduce a new curriculum.

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