Answer:
It takes courage to be a follower of Jesus in our current times because it may prevent you from making friends; no one wants to be alone in the world. Another reason is that being a Christian can cause the people around you to make fun of you and exclude you from groups, social gatherings, etc. Additionally, being a Jesus follower may even keep you from getting a job. While it can be intimidating, following Jesus is the best thing you can do. Due to many reasons such as becoming a public outcast, it will take courage to openly follow Him.
Diction is the author's word choice.
So A, otherwise known as the first choice in your list.
Hope this helps!
When the narrator shines the single beam of light on the old man's eye, that left a picture of the situation for me.
Another is when the narrator is hearing the heartbeat from under his floorboards and pacing around the room, growing more and more agitated until he finally confesses to the murder.