Smart approached Johnson and inquired about hiring someone to kill his girlfriend's parents. Unknown to Smart, Johnson was an undercover police officer who pretended to agree to handle the job and secretly taped subsequent conversations with Smart concerning plans and payment. A few days before the payment was due, Smart changed his mind and called the plan off. Nevertheless, Smart was charged with solicitation to commit murder. Smart should be 
acquitted, because he withdrew before payment and commission of the act.  acquitted, because no substantial acts were performed.  convicted, because the offense was completed before his attempt to withdraw.  convicted, because Johnson agreed to commit the offense.