Answer: B) Consider how you would feel if you suddenly had a rare fortune.
Explanation: context clues are words or phrases that the author writes in order to explain the meaning of a word or phrase in a sentence or paragraph. In the given excerpt the underlined term is "elated" which means ecstatically happy, and the context clue that would be the most helpful in determining the meaning of that word is the corresponding to option B: Consider how you would feel if you suddenly had a rare fortune (because, in fact you would feel very happy, excited, elated).
