I want to say the answer would D) Diction and Grammar.
Answer:
The main idea is that you have to go through the hardships of being an expert horseman to become a Pony Express rider.
Answer: dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Habitant morbi tristique senectus et netus et malesuada fames. Pharetra massa massa ultricies mi. Tortor at risus viv et egestas quis ipsum suspendisse. Enim neque volutpat ac tincidunt vitae. Leo a diam sollicitudin tempor id eu nisl nunc. A diam maecenas sed enim ut sem viverra.