In this task, you're given an article, a question which often contains a blank, four options (associated with "A", "B", "C", "D") and the answer to that question. Your task is to classify whether the given answer is correct or not by providing "Yes" or "No", based on the article.

Ex Input:
Article: Travel can be a lifesaver. But in today's economy with airlines adding new fees almost daily and ticket prices sharply on the rise, many have written off travel as too expensive. However, with a few saving tricks and a little research, there are still lots of great deals to be had on airline tickets and more. Early Bird Gets the Deal. Travel experts say that there are certain times of day when more deals are available. Airfares can change three times a day as airlines adjust their prices to fill up flights. Early morning is when the fares tend to be lowest.www.zxxk.com What Wouldn't a Business Traveler do? Flying when business travelers don't can save you big money. Most business travelers fly on Mondays and Fridays, so Tuesday and Wednesday are the best days. Airlines will usually lower their prices on these days to aggressively try and fill empty seats. _ _ Fly to popular places at unpopular times. The slowest time of the year for travel is in the Fall between Labor Day and Thanksgiving. Again, to try and fill more empty seats, the airlines will lower prices and offer better deals to get people to fly during this time of the year. Package Deals Many times the best deals on airfare can be found as part of a package rate. Most travel sites have package rates available. Often, the entire package (hotel, airfare, rental car) is cheaper than just the plane ticket on another site. Even if you don't need the rental car, with the money you've saved on the flight, you can afford to take a taxi. These deals are especially good on last minute bookings. With a little inside knowledge and some good timing, you can get yourself a steal on a ticket to the vacation you thought was out of reach.
Question: Which would be the best title for the text?
Options: (A) Tips on Vocation Travelling (B) Advice for Business Travelers (C) The Effect of Economy on Airlines (D) Tricks of Finding the Cheapest Flights
Asnwer: D

Ex Output:
Yes

Ex Input:
Article: Every spring Beijing is choked by huge sandstorms.The sky turns a strange and frightening yellow colour as clouds of sand sweep down from the deserts of Mongolia and north-western China.Strong winds blow up the dust and cover everything in sight--in 2006,a storm dumped 330,000 tonnes of dust on Beijing in one night. The number of sandstorms has grown alarmingly over the years as the deserts have expanded.This is partly man-made and partly because of climate .Many grasslands have been overgrazed by sheep and goats,or ploughed up,leaving the soil dangerously exposed.Too much water has been taken out of rivers,and the situation is made worse by increasingly long-lasting droughts that have affected the northern half of China as the climate grows warmer and drier.The result is probably the worst loss of rich land to deserts in the world and a dust bowl of extremely large proportions.The nearest sand dunes to Beijing are now only 70 km away and drifting closer each year.At this rate,the desert will reach the city by 2040,and Beijing could become the world's first modern city to disappear under sand.To hold back the deserts,a huge programme of forest planting called the Great Green Wall has been under way for over 30 years.The barrier is planned to be 4,500 km long when completed in several decades ,but the drought is having a very bad effect on the trees and the deserts carry on growing.
Question: All the following are the reasons for the expansion of the deserts EXCEPT _ .
Options: (A) the soil of the grasslands is exposed (B) too much water in rivers has been used (C) it doesn't rain for a long time (D) the climate in northern China is colder and drier
Asnwer: D

Ex Output:
Yes

Ex Input:
Article: Each year, prizes are presented to adults who accomplish great things in art, writing, science, and economics.So why not give awards to kids? Harry Leibowitz asked himself that question in 1996.As an answer, he and his wife, Kay, created the World of Children organization and began handing out awards to kids and adults whose work has helped kids all over the world.The awards World of Children presents are nicknamed the "Children's Nobel Prize." On Thursday, World of Children honored six adults and two kids at its 11th Annual Changemakers for Children awards ceremony held at the UNICEF House at United Nations Plaza in New York City. Talia Leman, from Iowa, was awarded a Founder's Youth Award for Leadership.She is only 13 years old, but she has accomplished a lot.In 2005, she founded "RandomKid." Since then, the nonprofit organization has raised more than $10 million to help kids in 48 states in the U.S.and in 19 other countries develop funding solutions to real-world problems.One place helped by RandomKid was a school built in Cambodia to enable 300 kids to go to school.The organization has also helped fix a school for 200 kids in Slidell, Louisiana, and provided interactive play centers that serve more than 500 kids in hospitals in Iowa.In faraway places like Africa, RandomKid has provided money for the purchase of water pumps. Talia never thought that the organization she founded would be as successful as it has become."I did a project called TLC, which meant Trick or Treat for the Levy Catastrophe, where kids would trick-or-treat for coins along with getting candy," she told me."My goal was to raise $1 million.That seemed really high, but when you reach a goal, you always wind up reaching higher--and we actually raised $10 million." The money RandomKid raised provided help to the victims of hurricanes Katrina and Rita.
Question: The World of Children organization was created to _ .
Options: (A) answer questions from chilren (B) match the Adults' Nobel Prize (C) give awards to chilren in poor areas (D) honour anyone who has helped kids in need
Asnwer: D

Ex Output:
Yes