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.

Example input: 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.
Example output: How many books are there in the British Library?
Example explanation: In the Article, 10,000,000 is mentioned for the number of books available in the British Library, so this is a good question.
Q: Article: Much of the world does have electricity, though, and electricity makes using the Internet possible. Now that so many have Web access, you might have noticed that people don't write letters to each other very often. But that doesn't mean they have stopped keeping in touch. "Key pals," who use a computer keyboard and e-mail account instead of a pen and paper, still continue the pen pal tradition today. E-mail and handwritten letters have different advantages. With e-mail, your pen pal can receive your note almost instantly , and you can attach digital photos. Letters take longer to arrive, but you can include stickers, pictures, or drawings. Maybe you want to know more about what having a pen pal is like before you jump into the experience. If so, there are plenty of books that can give you a taste of different pen pal adventures. Look for them at a bookstore or library. There are things to remember when communication with pen pals, especially in the digital age: Make sure to share all letters and e-mails with your parents so they know you are safe. If something seems _ , stop writing letters. Never meet a pen pal in person unless a grown-up is with you. And, of course, have fun! Your pen pal could become your new best friend. Or a pen pal relationship could bring you closer to someone you already know. With a pen pal, you can have your own taste of far-away places, someone to share your own discoveries with, and the adventure of opening your mailbox to find a letter in it just for you.
Answer: Because many of their letters don't reach their pen pals on time.
A:
Why don't people write letters to their pen pals so often?