What answer are you looking for; The words themselves, or maybe the court cases defining it, or what is held as the general opinion of what it means? What are you asking for?
The only one that I missed was the question as to what prompted the enactment of the 1934 National Firearms Act. I said that it was the exploits of such people as Bonnie and Clyde, John Dillinger and Pretty Boy Floyd. They said that it was the 1929 St. Valentine's Day Massacre. At least I got the legal stuff right.
I agree with Been, missed those same two because the quiz has the wrong answers. The second clearly does not have any limits in it, any limits have been instilled by more modern government, which does not make them correct. An unconstitutional law, is no law at all.