A possessive pronoun can be used as a direct object and as an indirect object. It can never be used as an object of preposition. Take the following sentence for example: She gifted her daughter a car. Her is a possessive pronoun, and her daughter is the indirect object of the verb gifted. Another example: He ate his breakfast quickly. He is the possessive pronoun, and his breakfast is the direct object of the verb ate.
The correct answer is 3. Internet Authority Association (IAA), because it is not a real style of citation. Others are existent and commonly used whereas IAA is not real.