Afederal statute makes it a felony to engage in any commercial act involving the "cruelty, wounding, or killing" of an animal or depicting anything being to an animal that is prohibited by law. robert stevens ran a website that sold films of dog fighting, many of which were films done in japan where such activity is not illegal. he was convicted of violating the federal statute. stevens appealed his case on the grounds that his first amendment rights were violated because the statute was overly broad. what theory of constitutional law would stevens be using in his appeal? a. substantive due process b. procedural due process c. the fifth amendment d. the commerce clause