Choose the correct antecedent or referent pronoun: "If any one of the students has misplaced (his or her, their) ticket to the show, (he or she, they) can ask for a replacement from the batch representative."

In this sentence, the use of the pronoun "his or her" is the most appropriate choice when referring to an individual student, as it emphasizes that the student can be either male or female. "His or her" effectively maintains the singular nature of the antecedent "any one of the students," which is singular even though it refers to students collectively.

The preferred pronoun "he or she" serves as the correct referent for the individual student who may have misplaced their ticket, aligning with the singular nature of "any one." Using "they" as a singular pronoun is becoming increasingly accepted in modern English, but traditionally it is used for plural antecedents. In this context, "he or she" is grammatically consistent with "any one of the students."

The correct connectives ensure clarity and consistency in the sentence structure, highlighting the relationship between each antecedent and its corresponding pronoun. Thus, "his or her" should be paired with "he or she" instead of "their" and "they" for a grammatically accurate sentence that reflects proper antecedent-pronoun agreement.