The answer to your question would be... C. they are surrounded by commas ans set them apart from the sentence. Hope I helped! Please give Brainliest :)
The incorrectly answer is " C.they are surrounded by commas and set them apart from the sentence.
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Intensive pronouns are used to add emphasis to the subject or antecedent of the sentence. You’ll usually find the intensive pronoun right after the noun or pronoun it’s modifying, but not necessarily.
Furthermore, an intensive pronoun is defined as a pronoun that ends in “self” or “selves” and places emphasis on its antecedent.