Which of the following rules is correct for using reflexive pronouns?
1) Reflexive pronouns cannot stand alone; they must refer to an existing noun or pronoun in the sentence.
2) Reflexive pronouns must always be the first word of the sentence.
3) Reflexive pronouns always refer to a noun in a sentence; they cannot refer to other pronouns.
4) Reflexive pronouns may stand alone; one example is the sentence, "Julie and myself wrote that paper together."