Marie purchased a used truck from Salesman when Marie was seventeen years of age. The purchase agreement was in writing and contained Marie's signed promise to pay $5,000 to Salesman for the truck when Marie reached her eighteenth birthday. Eighteen is the applicable statutory age of majority in the jurisdiction. A week after her eighteenth birthday, Marie notified Salesman in writing that, while she believed her contract with Salesman was unenforceable, she would pay him $4,000 for the truck because she had determined that the truck had previously been in an accident. As a result of the accident, the reasonable value of the truck at the time Marie purchased it from Salesman was only $2,500. If Salesman files suit for money damages, what is the maximum amount that Salesman will be entitled to recover? a) $5,000. b) $4,000. c) $2,500. d) Nothing