The correct answer is B. Is this sweater hers or his?
Explanation:
In grammar, the possessive personal pronouns are used to show ownership or possession; additionally, this words derive from personal pronouns and are related to these, for example, "mine" is the possessive personal pronoun for "I", other possessive personal pronouns include hers, his, theirs and yours. Additionally, these differ from the words my, your, her, his, their and its because it is necessary to include the antecedent or element that belongs, for example, in "that ball is mine" the antecedent (ball) is mentioned before the possessive pronoun "mine".
According to this, the sentence that uses possessive personal pronouns correctly is "Is this sweater hers or his?" because "hers" and "his" are part of the possessive personal pronouns, also the use of the words is correct because the antecedent "this sweater" is placed before the possessive personal pronouns, while in other options the possessive personal pronouns are not written correctly or placed before the antecedent.
