During the golden age of cooperation, the Iberian Peninsula was under Christian control, but during the Reconquista, it was under Muslim control. During the golden age of cooperation, people of different religions lived peacefully, but during the Reconquista, the goal was defeating non-Christians.
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I believe the answer is A.
The 13 colonies declared their independence from Great Britain because the king started to tax the colonies to help repay Britain's debt from their war with the French. He claimed that paying the tax was the least they could do as the British were hard at work "protecting" them.