You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
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: Have you ever thought about why traveling is important? It may seem obvious, but a good trip introduces you to a "new world". Geography matters: where you are going plays a huge role in how you think. About six months after I moved to China, I got the chance to travel with a group of friends to Vietnam, Laos and Cambodia. This trip was great fun: I got to swim, cycle and stay in tree houses in the jungle. But more importantly, this trip was meaningful. All of these three countries were bombed by the US military during the conflict with the North Vietnamese, the Vietnam War. As someone with strong anti-war opinions, I wanted to learn how the people of this area remember the war. I was not disappointed. When I was in Ho Chi Minh City, Vietnam, I got the chance to explore the Vietnam War Remnants Museum, which has the largest collection of anti-facts from the Vietnam War. One exhibit is especially memorable. It is full of photos and artwork showing the effects of Agent Orange, a chemical weapon used by the US military against the land and population of Vietnam. The aim of the Agent Orange campaign was to destroy plant life to make it more difficult for North Vietnamese fighters to hide behind trees. But ordinary Vietnamese were hurt the most. I had tears in my eyes as I looked around the exhibit. Ks5u Another time during our trip, my friends and I were arriving in a town in Cambodia on an overnight bus. As we got off the bus, taxi drivers came over offering rides. One of them asked me, "Where are you from, man?" I replied, "America!" And he said, "Ahh...the place where they make the bombs!" He laughed. I didn't. Ks5u Traveling offers perspective . There are few things more important than that.
Answer: It was a special type of gun that was especially designed to kill plants.
Solution:
Which of the following is TRUE about Agent Orange according to the article?