It looks to be that choice "A" has been cut off. If not, then C should be your answer!
B. is the BEST because it gives the flexibility of theme ideas for courage.
C. is very specific on climbing mountains as the only way to learn about courage.
A and D are criticising courage.
Answer:
Protagonists and antagonists are both essential characters in a story, but they propel the plot in different and usually opposite ways: ... In storytelling terms, this means that protagonists and antagonists are opposing forces in a story.
Explanation: