Answer is B.
It provides the most clear answer in which most people can understand. It summarizes what he means very well. Thomas basically said that he would not support war in most circumstances but he would also not stand by and suffer when an evil force is hurting him. Even if it is a king, he would still not let himself and his friends suffer from his "tyranny." The choice B summarizes this nicely.
He found success later in life
Explanation:
The observation that effectively addresses a core concept of 'Life on the Mississippi' seems to be the practice of developing up can become very complicated and even unpleasant. The above indicates that you really can evolve with the discomfort and struggles in everyday life.
I think it is C
Hope this helps correct me if I'm wrong