2.Mason purchased a quantity of fireworks from Hi-Fireworks Inc. The sale was illegal, however, because Mason did not have a license to make the purchase, which the seller knew because it had been informed by the Attorney General of that state. Mason did not pay for the fireworks, and Hi-Fireworks Inc. sue him. He defended on the ground that the contract could not be enforced because it was illegal. Was he correct? Explain your answer.