Which of the following best describes the main idea of the passage?
答案解析
The passage discusses the potential insufficiency of retirement pensions for steelworkers and airline employees, highlighting a specific challenge related to retirement planning for these professions. This directly relates to option A. The other options, while related to broader themes that might be touched upon in a discussion about life choices and happiness, do not directly address the main idea presented in the passage.
正确答案:A