Is burning a draft card protected by the first amenment?

One of them, United States v. O'Brien, was argued before the Supreme Court. The act of draft card burning was defended as a symbolic form of free speech, a constitutional right guaranteed by the First Amendment. ... From 1965 to 1973, very few men in the US were convicted of burning their draft cards.

Yes, it is protected by the 1st amendment 

Your answer should be choice b!