The correct answer would be option C: "feels slightly foolish about the events that occur", this due to the way the excerpt is written, since, it seems the author wanted to let the readers know that the narrator isn't stupid, so that they keep that in mind, when they read about a foolish thing said narrator did. If the narrator did something dumb, then option A and B would be discarded, as would option D.
In stave one, Ebenezer Scrooge is depicted as an extremely cold, callous businessman who is insensitive, cold-hearted, and miserly
The sound of similar sounding word usage can make the state of mind or tone of a ballad or bit of composition.For example Gentler sounds like "h" or "l" may make a more reflective or sentimental state of mind or tone. The monotonous sounds in similar sounding word usage work with different components like meter and word decision to make the coveted state of mind or tone.
My opinion is to stay with your friend and trust you instincts