Answer: her, me, us.
Explanation: The object in a sentence is the entity that is acted upon by the subject (the element that receives the action of the verb). An object pronoun is a type of personal pronoun that is normally used either as the direct or indirect object of a verb, or as the object of a preposition. From the given options, the pronouns that act as the object in a sentence are "her," "me," and "us."