Sally told Michael she would like to have sexual intercourse with him and that he should come to her apartment that night at 7 p.m. After Michael arrived, he and Sally went into the bedroom. As Michael started to remove Sally's blouse, Sally said she had changed her mind. Michael tried to convince her to have intercourse with him, but after ten minutes of her sustained refusals, Michael left the apartment. Unknown to Michael, Sally was 15 years old. Because she appeared to be older, Michael believed her to be about 18 years old. A statute in the jurisdiction provides: "A person commits rape in the second degree if he has sexual intercourse with a girl, not his wife, who is under the age of 16 years." If Michael is charged with attempting to violate this statute, he is 
guilty, because no mental state is required as to the element of age.  guilty, because he persisted after she told him she had changed her mind.  not guilty, because he reasonably believed she had consented and voluntarily withdrew after she told him she had changed her mind.  not guilty, because he did not intend to have intercourse with a girl under the age of 16. 