Why Did the Chinese Imperial Court Initially Welcome the Jesuit

Why did the Chinese imperial court initially welcome the Jesuit missionaries?

A) The Chinese state saw the political and military success of the European states as a demonstration of the power of the Christian God.
B) The Chinese people had been defeated,their societies disrupted,and their cultural confidence shattered.
C) The Jesuits' knowledge in mathematics,astronomy,technology,geography,and mapmaking was useful to the Chinese.
D) The Jesuits far outnumbered the Chinese and had already converted the vast majority of the nomadic peoples in the steppes north of China.