The question asks for the best analogy of the given word- "minor". The comparison that is provided is that of "cat" and "cougar". So, what is the relation here that can help us get the correct answer? The connection is that of size and similar species. Cats are from the same species as the cougars. In the same way, "major" is the word which is significantly comparable to the word "minor". So, we must pick "major" out of the list here.
Since its asking what is the best one to describe how red the apple is, the reddest apple would be the most red apple, while the redder is just bigger than the redless apple.
