The question revolves around understanding consumer sentiment. The correct answer is 'C. Consumers remain optimistic about the long-term prospects' because the text states that consumers are not panicked and feel their fortunes are good. 'A. Consumers are panicked about the economy' and 'B. Consumers are in despair due to the economy' are incorrect as they reflect negative sentiments contrary to the information given. 'D. Consumers are indifferent to the economy's performance' suggests a lack of concern, which is not in line with the consumers' optimism mentioned.