"On several occasions, Ghazan Khan went to the observatory at Maragha and watched the Muslim, Christian, and Chinese astronomers make their observations. He looked at all the operations and instruments, studied them, and asked about their procedures, which he understood in spite of their difficulty. He also ordered the construction of a dome in order to investigate the Sun's motion and he spoke out with his astronomers about it. All of them said that although they had never seen such an instrument, it was reasonable and sensible. Submit He gave orders for the construction of an observatory next to his tomb in Tabriz in Persia. He explained how to construct the observatory with such clarity that local wise men marveled at his intelligence, because such work had not been done in any era. Those wise men said that constructing the observatory would be extremely difficult. He guided them, whereupon they commenced building it and they finished it following his instructions. Those wise men and all the engineers agreed that nobody had done such a thing before nor had imagined doing it." ruler of the Mongol ilkhanate, whose territories included most of the Muslim Middle East, reigned 1295-1304 Which of the following best describes the author's purpose in the passage? А To provide detailed descriptions of the instruments used at the Maragha and Tabriz observatories B To evaluate the importance of the astronomical discoveries made by ilkhand scientists с To portray his patron as a generous supporter of the sciences and a man of unusual intelligence D To criticize Ghazan for his vanity and remind him to focus on religious and spiritual pursuits