Which of the Following Is a Legal Description of Child

Which of the following is a legal description of child pornography?

A) The sexually explicit reproduction of a child's image and includes sexually explicit photographs.
B) The permanent record of the sexual abuse or exploitation of an actual child.
C) The visual depiction of a minor (as defined by statue) that is sexually explicit (not necessarily obscene unless required by state law) .
D) All of the preceding are legal descriptions of child pornography.