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: New Annotated Sherlock Holmes by Arthur Conan Doyle Price: PS28.00 Publication Date: 30/11/2006 Publisher's description: Collect Doyle's fifty-six classic short stories, arranged in the order in which they appeared in late-nineteenth-and-early-twentieth-century book editions, in a set complemented by four novels, editor biographies of Doyle, Holmes, and Watson as well as literary and cultural details about Victorian society. Breaking Ground by Daniel Libeskind Price: PS16.00 Publication Date:11/10/2006 Brief description: This is a book about the adventure life that can offer each of us if we seize it, and about the powerful forces of tragedy, memory and hope. For Daniel Libeskind, life's adventure has been through architecture, which he has found has the power to reshape human experience. Although often relating to the past, his buildings are about the future. This biology of one man's journey brings together history, personal experience, our physical environment and a fresh international vision. In the Shadow of No Towers by Art Spiegelman Price: PS16.00 Publication Date:02/09/2006 Brief description: On 11th September 2001, Art Spiegelman raced to the world Trade Center, not knowing if his daughter Nadja was alive or dead. Once she was found safe---in her school at the foot of the burning towers---he returned home, to mediate on the trauma , and to work on a comic strip . In the Shadow of No Towers is New Yorker Art Spiegelman's extraordinary account of "the hijacking on 9.11 and the following hijacking of those events" by America. Light on Snow by Anita Shreve Price: PS14.00 Publication Date:07/10/2006 Publisher's description: This is the 11th novel by Anita Shreve, the critically accepted bestseller. A moving story of love and courage and tragedy and of the ways in which the human heart always seeks to heal itself. Last Child in the Woods by Richard Louv Price: PS20.99 Publication Date:11/08/2006 Brief description: Camping in the garden, riding bikes through the woods, climbing trees, picking wildflowers, running through piles of autumn leaves... these are the things childhood memories are made of. But for a whole generation of today's children the pleasures of a free-range childhood are missing, and their indoor habits contribute to obesity, attention disorder and childhood depression. This book shows how our children have become increasingly distanced from nature, why this matters and how we can make a difference. Richard Louv is chairman of the Children and Nature Network and co-chair of the National Forum on Children and Nature. He is the author of seven other books and has written for newspapers and magazines including the New York Times and the Washington Post.
Answer: Arthur Conan Doyle
Who is the writer of the latest book published among the four books?

Article: Watching a child struggle to breathe during as asthma attack is frightening for any parent. So it is only natural that most moms and dads will try just about anything, including spending a lot of money -to keep an attack at bay. Trouble is, more than half of parents are trying strategies that simply do not work and wasting hundreds of dollars in the process. According to Dr. Machael Cabana, a pediatrician at the prefix = st1 /UniversityofMichigan's C.S. Mott Children's Hospital, who led the study, one of the most common mistakes was to buy mattress cover to protect against dust mites for a child whose asthma instead was made by plant pollen . Many of those parents then neglected to do what would have helped a lot more; shut the windows to keep pollen out. Another was using a humidifier for a child who was allergic to dust mites; a humidifier tends to be a place where dust mites like to breed. With those allergies, a dehumidifier works better. Worst of all was the number of smokers with asthmatic children who didn't even try to quit or at least limit themselves to smoking outdoors rather than just moving to another room or the garage. Many smoking parents purchased expensive air filters that have what Cabana called " questionable utility. " Part of the problem, Dr. Caban and his colleagues believe, is that parents are bombarded by television ads that encourage them to buy products such as air and carpet fresheners, ionizers and other remedies that are often expensive but medically unnecessary. And doctors may not always take the time, or have the time, to explain to parents what will and won't work in their child's particular case. For example, allergies are usually a problem for older children with asthma, while kids 5 and younger more frequently have trouble with viral repiratory infections. So make sure you understand what the cause of your child's asthma really is.
Answer: Closing the windows to keep pollen out of the house.
What can help the children who are asthmatic according to the passage?

Article: Mini Hoover Dam Tour ONLY $48 per person LIST PRICE $60 This tour begins with beautiful sights as you travel by coach through famous Las Vegas towards Boulder City, Nevada. As you leave Boulder City on your way to the famous Hoover Dam, you will see in the distance Lake Mead. Created by the Hoover Dam, it is one of the largest and most beautiful man-made lakes in America! When you arrive at Hoover Dam, you can visit the museum, watch a movie on the Dam's construction and see Oskar J.W. Hansen's famous sculptures on the Nevada side. Experience the excitement of this man-made wonder with great views that will create memories of a lifetime! Tour Highlights * Free hotel-to-hotel pick-up and drop-off * Coaches with windows for your viewing pleasure * Beautiful views of man-made Lake Mead * Experience the Hoover Dam from two states * Hoover Dam Discovery Tour * Time for souvenir shopping * Relax and enjoy our return journey by coach to Las Vegas
Answer: $24.
How much will your parents save if they attend the Mini Hoover Dam Tour?