Answer:
a. freedom of speech provisions of the First Amendment.
Step-by-step explanation:
In the 1997 Reno v. ACLU case, the U.S. Supreme Court unanimously voted to strike down the anti-indecency provisions of the Communications Decency Act (CDA) because they violated the freedom of speech provisions of the First Amendment. The judgement states that anti-indecency provisions of the Communications Decency Act (CDA) over contents on the internet violates the First Amendment, and that while the government has the obligation to protect minors from indecent speech, it should not prevent adults to access to free speech.