Answer: To stop the spread of communism.
Explanation:
I am pretty sure the answer that oyu are looking for is D. I hope I am right and that this helps. Good Luck
The correct answer is the fourth option.
Sun Yat-sen is one of the most important 20th century Chinese political figures. He is hailed as a "father of the nation" but his career was tumultuous one. He was instrumental in overthrowing the Qing dynasty but after the second revolution because of the Tongmenghui he had to flee but was for a short time imprisoned in Britain where he was in exile by the Chinese who recognized him.
He chose Lewis and Clark to explore the new land. They took notes of the plants, flowers, and landscapes they found and encountered. Along the way they also got help from Sacagawea, a Native American woman. Hope this helps!