The correct answer is Emphasizes the noun it references
Step-by-step explanation:
The main grammatical function of intensive pronouns is to point out the importance of a previous noun in an action or to emphasize the noun. This category of pronouns includes words such as herself, themselves, or myself that end in -self or -selves. For example in "She herself prepared the dinner" emphasizes the idea it was the woman the one that made the dinner rather than any other person. Moreover, these pronouns are considered as non-essentials, which means they provide extra information but can be omitted if necessary.