Answer:
In the sentence The roommates moved themselves into the dorm without any help from their friends or family, both pronouns themselves and their refer to the antecedent roommates.
Explanation:
Any pronoun introduced in a sentence must refer to a noun, noun phrase or noun clause that comes before called antecedent. Pronouns must also agree with its antedecent in number. In this case, both the reflexive pronoun themselves and the possessive pronoun their refer to the noun previously mentioned in the sentence that is roommates.
