Correct answer: b. He called himself the Sun King because he considered himself as important as the sun itself.
Details/context:
Louis XIV is a hugely important historical figure. He was known as the Sun King because all activity in France basically revolved around him. So much so was that the case, that members of the nobility competed with each other for the right to help the king get dressed in the morning! It was one of Louis XIV's goals to keep the ranking nobles from being a threat to his power, so he lured them to come live at the glorious Versailles palace with him. That way he could keep them under his influence and away from their lands in the provinces. They were lavishly entertained, but lost the real power they would have had as lords governing in their provincial lands.