Lori and her friends burn an American flag as an act of political protest. Lori is arrested for violating a state law that prohibits flag burning. The Supreme Court has ruled that laws making it illegal to burn an American flag: a. are void because they deny a person due process rights. b. are void because a state court has no power to prosecute a person for burning the federal flag. c. are void because they violate a person's right to freedom of speech. d. are valid.