<span>B. to provide evidence that the age of discovery is concluding</span>
I believe it is the 1st one, however I am only in middle school so I would wait for another answer to be 100% sure.
Answer: The answer is , For spring break my family will visit Washington D,C, Which is the capitol of the united states.
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Explanation: A dependent clause it a clause that cannot stand on its own as a sentence because it only provides extra information to a sentence. Therefor, B would be your answer because The sentence provides the extra information which it that Washington D.C is the capitol of the United States. So, Instead of the Phrase "For spring break, my family will visit Washington D.C." It will become "For spring break,my family will visit Washington D.C <u><em>
Which is the capitol of the United States.</em></u></h3><h3><u><em>
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Hope this helps and explains better :)</h3>
Procrastinate perhaps? There are a few more that mean the same thing.