A.shogun,daimyo,samurai,merchant
The answer is Dregg did delightfully on his Antarctic test because ... he knew it cold! This puzzle is a play on words; when somebody is fully set for every answer on a test, they can be said to "know it cold." At the same time the Antarctic is recognized for being, in fact, very cold. So in this joke Dregg knew all the answers about the cold weather of the Antarctic.
The source of Albert's fear was "A White Rat".
This was a famous experiment by John Watson and Rosalie Rayner for which they received much criticism. The child whose name was "Albert" but is famously known as "Little Albert" moved shortly after the experiment so it was a mystery what happened to him until recently when he was found as “<span>Douglas Merritte” who died before he was found.</span>
Lucy has a very high opinion of herself. This means that she will more likely by others.
Self-opinion means she has a high or exaggerated opinion of herself. Having a high opinion to think that something is good to something or oneself.
