Respuesta :
Answer:
The class treated themselves to a pizza party.
Explanation:
Reflexive Pronouns are used to indicate that reflexive action falls on the subject itself. In this case, the pronoun comes after the verb and agrees with the subject. These pronouns are characterized by the self (singular) and selves (plural) terminations.
In this case, we can reason as follows: A class is formed by a group of people, so a pronoun that could refer to the class would be "they", so the correct relative pronoun to be used in that phrase is "themselves."