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In this task, you're given an article and an answer. Your task is to generate the question for the answer based on the given article.

Article: There are a lot of public libraries in Britain. These libraries have more than one hundred and fifteen million books, not including those libraries of public schools. Public libraries not only lend books, music records but also help children, patients in hospitals and others to get special play readings, film shows and so on. The first public libraries were founded in about the year 1850. Today's public libraries usually have a reading-room, a lending room and a reference room. The greatest and most famous library in Britain is that of the British Library in London. It was founded in 1973 and has over 10, 000, 000 books. It has nearly every magazine, newspaper and book published in Britain and other parts across the world.
Answer: 10,000,000 or less.
Solution: How many books are there in the British Library?
Why? In the Article, 10,000,000 is mentioned for the number of books available in the British Library, so this is a good question.

New input: Article: * Membership Hostelling International (HI) is a membership organization, and HI membership gives you much more than a comfy bed! It puts you at the heart of a huge international family, where you can share experiences, travel and friendship with people of all nations. * Membership Savings Program Your National Association or Hostelling International Membership card not only opens the door to the world's largest network of safe, clean and welcoming hostels, but in many HI hostels, being a member now gives you at least a 10 percent saving on the cost of your accommodation - just one of the great reasons to become a member! In some countries, membership is compulsory if you wish to stay in HI hostels listed on this site. To find out what is applicable in the country you wish to visit, please check the Membership Savings Program. Apart from cheaper accommodation in many of our 4,000 hostels worldwide, membership also gives you access to thousands of travel-related savings at home and abroad. Please check locally with your HI hostel on arrival for details of these great benefits which can include: reduced-price admission to attractions and museums, discounts on meals, transportation and lots more. Whatever your budget, membership helps you to explore and "Say HI to the world", backpack across Europe, discover Down Under, dance to Latin rhythms, chill out on an idyllic Asian beach or simply "Discover the real hostel experience" in one of our unique hostels worldwide. * How to become a member Purchase a membership from your nearest HI Youth Hostel Association office or membership selling outlet before you start your journey. Purchase an international membership when you arrive at an HI hostel outside your country of residence. To check the price and availability of membership on arrival, please contact the hostel directly. Alternatively, you can purchase a 12-month e-Membership during the booking process with your hostel stay. The e-Membership entitles you to stay in any HI hostel and receive at least 10 percent discount on accommodation charges compared to a non-member. Please note: when you select your country from the list below you will be given full contact details plus a link to the national HI Youth Hostel Association website. Please select the Membership section on the site.
Answer: Opportunities to meet local people.
Solution:
Which of the following is NOT promised by Hostelling International?