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: BOGOTA (Reuters) -- Colombian mobile telephone users are being tricked by criminals who pretend to be phone operators and instruct them to turn off their cellphones just long enough to demand a large amount of money from their families. prefix = st1 /Colombia has seen a large number of cases in which mobile phone customers receive messages telling them to turn off their cellphones for two hours because their telephones havebeen cloned, police say. The criminals then contact family members of the phone user to say that he or she has been taken hostage . Families who have no way of contacting their are directed where to drop off money before the two hours are up. "If you get a call telling you to turn off your cellphone, contact the official department." Local television channel Caracol told viewers during a Tuesday news program. BERLIN (Reuters) -- A Berlin court has sentenced a man known as "Schnitzel Stephan" to 18 months in prison for cheating 64 restaurants in the past year. The man of 160 kg, with a thin grey beard, would regularly order lamb chops, steak or Viennese schnitzel along with several beers. When the bill came, he either ran for the door or told the waiter he had no money. Iris Berger, a spokeswoman for the Berlin Justice Department, said on Thursday the 43-year-old jobless truck driver had been convicted ( ) on 64 counts of fraud ( ). The total damage to restaurants was $4,100.
Question: According to the first piece of news, which of the following happens first?
Options: (A) Cellphone users turn off their mobile telephones. (B) Cellphone users receive messages from criminals. (C) Criminals contact family members of the phone user. (D) Criminals get lots of money from the victims.
Asnwer: B

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: My 16-year-old son, Anton, had gone to the local swimming hole. Most of the kids who swim there are fit and strong teens, and there are plenty of rocks for them to use as safe harbors, so I had no fears for his well-being. Still, the firefighter's first words, "You need to come up here to the Stillwater River," made me catch my breath. When I got to the river, I saw Anton sitting quietly on a low platform of the fire engine, with a towel wrapped about his shoulders. I hurried over to him. "You OK?" I asked. "Yeah," was all he said. But my eyes begged for an explanation. I didn't get it from my son. The story was this: A couple in their 20s, unfamiliar with the Stillwater, had gotten caught in the current and began screaming for help. Without hesitation Anton and his friend dived into the water, swam out to the drowning woman, and brought her safely to shore. In an age in which the world "hero" is broadcast with abandon and seemingly applied to anyone, I realized the real thing in my son and his friend--the disregarding of personal safety for the sake of another human being. I know that teens are headstrong and self-centered, but this didn't lower the gravity of the event and the desire to do good. Along the way home I tried to get some more information from him, but the only words were, "What's for supper?" I thought twice about the tragedy that might have been. Questions flew across my mind like a flight of swallows: Would I have risked my life to save a drowning person? Or would I have chosen to dial 911? Would I have told the story over and over to anyone who'd listen? The next morning, when Anton got up, I half expected him to tell me the story from his point of view, now that he had some distance from the event. But all he did was to toast a pie, pull himself together, and head for the door to begin the new day.
Question: The writer caught her breath when she heard the fire fighters' first words because _ .
Options: (A) her son saved a woman (B) she was scolded by fire fighters (C) she was anxious about her son's safety (D) her son was to blame for a fire
Asnwer: C

Ex Output:
Yes