欧洲自行车题如何归类

Popular culture in the United States has become Europeanized to an extent unimaginable twenty-five years ago. Not many people then drank wine with meals, and no one drank imported mineral water. No idea would have been more astonishing than that Americans would pay to watch soccer games. Such thoughts arise because of a report that the American Association of State Highway and Transportation Officials has just adopted a proposal to develop the country’s first comprehensive interstate system of routes for bicycles.

Which of the following inferences is best supported by the passage?

1、Long-distance bicycle routes are used in Europe （correct)

2、Drinking imported mineral water is a greater luxury than drinking imported wine

3、United States culture has benefited from exposure to foreign ideas

4、Most Europeans make regular use of bicycles.

5、The influence of the United States on European culture has assumed unprecedented proportions in the last twenty-five years.

此题被多处作为例题，解析：“本文的推理过程可简化为：因为需要修建自行车道路系统，所以美国大众文化才被欧化。显而易见，本题要求我们从五个选项中找出一个使上面推理的结论成立的必要条件”。但刚入门的我，不太明白“显而易见，本题要求我们从五个选项中找出一个使上面推理的结论成立的必要条件”。题干Which of the following inferences is best supported by the passage? 是问文章支持选项，如果是演绎题中的支持题或假设题，不是选项支持文章吗？

请大家指点！