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Read the passage.
There is a popular legend in Britain that a brave king named Arthur once ruled the land. Historians tell us that most likely Arthur did
exist, but facts about his life are vague. We do know that if he existed, he probably ruled in the sixth century. Many tales have been told about
the life of King Arthur. In one, he pulls a magic sword from a block of stone. In another, he marries a beautiful princess, and they move to a
castle called Camelot. Stories of King Arthur have delighted people all over the world for centuries.
Information in the passage would best support replacing "vague" with which word?
1. blurred
2. confused
3. distant
4. uncertain