Which would be the best summary of paragraph 3 of "The Lady, or the Tiger?"

The citizens produce plays and musicals to encourage unity in a large theater.

The king wants to punish the guilty people so that there is peace in his land.

The king builds an arena in which the fate of the accused is decided by chance.

The king establishes a system in which accused criminals choose between two doors, behind one of which is a ferocious tiger and behind the other is a maiden.