OE
The “while” in front of the first blank suggests that the items given by the aristocrat are valuable only as reminders: that is, they have no real value in themselves. Nugatory means “of no value,” while sumptuous (very costly, luxurious, or lavish) implies real value and also conflicts with the “tokens” clue. Sardonic (scornfully or derisively mocking) is unrelated. The “power of the Crown continued to be held in esteem”—you are looking not just for political conditions that are bad or dangerous, but conditions that are changeable. Mercurial means “frequently changeable or changing.” Jocund (cheerful, merry) political times are not indicated by any proof. Magisterial (having great authority; dictatorial) is a theme trap, and it doesn’t follow the signal word “even.” “The Crown continued to be held in some esteem,” even in political times when the esteem attributed to the Crown must have decreased.
Answer: B,D