All bills passed by Congress require this before they become a law. A. The signature of the president. B. The approval of the Supreme Court. C. Congressional override.​

A

Explanation:

According to my research, "Before a bill can become a law, it must be approved by the U.S. House of Representatives, the U.S. Senate, and the President." of those answers provided, A is the only one that fits. If you're still having trouble, I'd suggest looking at the How A Bill Becomes a Law song by Schoolhouse Rock, which is pretty catchy, and explains how a bill becomes a law pretty well. Good Luck!

can we see the cartoon?