He uses hypens to create shorter sections of sentences to make the passage seem more fast paced and tense when read
Answer b. is the correct answer
Ethos pathos logos is the answer
Demonstrating bravery huh? It doesn't seem too hard to explain. Say, for example your talking about a fictional story, right? Depending on what that said character does, depends on his/her bravery for he/she did. If you can implement something similar to that in whatever it was you had in mind, it might help.
I really hope this helps.