(1) A person is guilty of unlawful transaction with a minor in the third degree when:
(a) Acting other than as a retail licensee, he knowingly sells, gives, purchases or procures any alcoholic or malt beverage in any form to or for a minor. The defendant may prove in exculpation that the sale was induced by the use of false, fraudulent, or altered identification papers or other documents and that the appearance and character of the purchaser were such that his age could not have been ascertained by any other means and that the purchaser's appearance and character indicated strongly that he was of legal age to purchase alcoholic beverages. This subsection does not apply to a parent or guardian of the minor;
(b) He knowingly induces, assists, or causes a minor to engage in any other criminal activity;
(c) He knowingly induces, assists or causes a minor to become a habitual truant; or (d) He persistently and knowingly induces, assists or causes a minor to disobey his parent or guardian.
(2) Unlawful transaction with a minor in the third degree is a Class A misdemeanor.