Diction specifically refers to a speaker's choice of words and how "effective" these words are in achieving a specific goal.
So, your answer here should be B: Meaning and effect of words.
Google search "diction" if you want a definition.
Hey, I know that you’re not going to open this and you probably hate me, but I wanted to say sorry for being a bad friend and for always being a [blank] to you. I only said that I don’t [blank] with you because I felt like you never even wanted to talk to me. Anyways, I will actually leave you alone forever now. I just wanted to tell you this and sorry that I continue to bother you.
I’m sorry things worked out for you this way but, trust me, try not to dwell too much on it. I wish you the best of luck, my friend. <3
The answer is resolution, because it's the revelation of the story.
Answer:
B presents important ideas first
seems right
