Does that mean you want to learn how to speak english?
The author's attitude toward the subject on which he/she is speaking.
attitude is everything like if you were hanging out with your best friend and your feeling down that just makes everyone else in a bad mood.
An expository article is usually about explaining something or talking about it. So if it's a true story and you write it like a life story then yes it can be. If it's just a fictional story you want to write then no.
I believe your answer would have to be A. " he"
