Sentence B is the correct one. It is the only sentence using content to refer to satisfaction rather than objects or substances.
The answer should be D. well liked
If it is the first question, you need to give a short meaning and a sentence using the word that they are giving you. Also, you need to say whether it is a noun, a pronoun, a verb, adjective, adverb, article, etc.
I believe he is just being realistic. He is arguing that the American Dream can indeed offer opportunities that are not available to people anywhere else. However, this does not mean that everyone has the chance to become equally successful and wealthy. Your chances and your success are going to be determined by factors such as ability, or achievement. It is a more realistic view of what the "dream" actually looks like in practice.
