What would be the most efficient means of keeping guns away from criminals? [View all]

A) Universal background checks at point of sale

B) Firearms owner ID cards that must be surrendered, like a drivers license, if the bearer is adjudicated to have committed a disqualifying offense

C) Both A and B

D) Other

E) Anybody who owns a gun should have people with guns sent after them to put them in a place where they are guarded by other people with guns because guns never solve anything