I think the answer is... C. Your welcome!
It was suppose to be unsinkable
It was one of the biggest of the time
In China’s civil war, the United States backed___.
Answer: Out of all the options presented above the one that completes and makes the statement above true is answer choice D) the Nationalists, led by Jiang Jieshi. In the year 1928 Jiang becomes president of the Nationalist Republic of China.
I hope it helps, Regards.