I think it is A because google defines a narrative as:
A spoken or written account of connected events; a story."the hero of his modest narrative"<span>synonyms:<span>account, chronicle, history, description, record, report, story"an interesting narrative about her year in Bolivia"
Typically a narrative is about a personal experience</span></span>
Tragedy is a specific form of literature made popular by the Greeks. Fate and character can contribute to the fall of the tragic hero, though some tragedies emphasis one more than the other. Tragedy includes a tragic hero who suffers a downfall because of a character flaw or moral failing. Romeo and Juliet is a good example of tragedy of fate. Romeo and Juliet are meant to be together, but their families keep them apart. The death of the young lovers is the tragic result of this human pettiness. Macbeth is an example of tragedy of character. Macbeth becomes blinded by his ambitious, committing an evil act, leading him to his own eventual downfall. The story includes an element of the hero trying to work against fate.
Aristotle claims that the End Of Man is happiness
The main idea is usually what the authors point is, it is usually stated in the conclusion paragraph or the first paragraph. If the answer is not clear, then read the whole paragraph and see what the author is saying.
At the twin towers of 911 , helping save lives before the unthinkable could happen .