When Congress Passed a Criminal Statute Called the "Gun-Free School

When Congress passed a criminal statute called the "Gun-Free School Zones Act," the Supreme Court ruled that

A) the law was valid as a proper exercise of the power to regulate interstate commerce.
B) the law was void for vagueness;thus,it was not valid.
C) the law was not valid since Congress exceeded its power under the Commerce Clause.
D) although the law was not a proper exercise of the power to regulate interstate commerce,Congress had the power to create such legislation on other grounds.Therefore,the statute was valid.