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: D It was about midday.I'd left work early in the morning to cash a check.I walked along to the bank and found there were only about ten or eleven customers in there, a pretty unusual number for those central banks. I waited until it was my turn, walked up to the desk and started talking to the bank clerk.He had a really strange expression on his face--just sort of a blank stare.I thought he was looking at me until I realized he was staring over my shoulder. I began to turn round to see what he was looking at and at the same moment, the outside bank guard, the one with the machine gun, came flying through the door and lay face down on the floor.Following him through the door were three absolutely frightening men wearing those horrible stocking masks.They were carrying guns; at least the one in front was carrying a pistol. Whether or not they said anything I can't remember to this day, or whether people just automatically put their hands up I don't know.I put my hands up but I just didn't know what to do.For a few moments there was just total silence, suddenly broken by the telephone ringing.I remember wondering who was on the other end of the line.Nobody answered the telephone, so it just kept on ringing and ringing, in this otherwise deathly quiet. Then two of the masked men went to the counter, jumped over it and got the cashiers and bank clerks to start filling their bags with cash.While the two were getting the money, the one at the door covering us with the gun obviously got a bit of an anxiety attack and started swearing at them, telling them to hurry up and get a move on. They jumped back over the counter.One of them lost his balance when he landed on the floor and fell over.The other two swore at him again.Then they left through the door, warning us, "Don't move.Stay like that with your hands up for ten minutes." Then they just disappeared and there was total silence.
Question: What could make the writer sense that something was about to happen?
Options: (A) The small number of customers. (B) The total silence in the bank. (C) The bank clerk's unusual behavior. (D) The constant ringing of the phone.
Asnwer: A

Ex Output:
No

Ex Input:
Article: Does it drive you crazy that your cell phone needs to be frequently charged for hours? A team of scientists led by professor Harold Kung at Northwestern University in the US may have solved your problem. They developed a lithium ion batery that holds 10 times as much power and charges 10 times more quickly than standard batteries, according to the BBC in a report on November 15. Lithium ion bateries are rechargeable and are widely used in cameras, smartphones and laptops. They charge through a chemical reaction in which lithium ions are sent between the two ends of a battery. How much power the battery holds and how fast it charges are limited by two things:how many lithium ions it has and how quickly these ions move. Current rechargeable batteries have an anode made of many carbon-based graphene sheets. To increase energy capacity, former experiments have tried to replace the carbon with silicon, which can hold far more lithium ions. However, this method did not work because the silicon was not stable enough. Kung's team managed to stabilize the silicon. They put clusters of silicon between the graphene sheets like a sandwich so that the silicon could not move around freely and take away the energy. The speed at which a battery charges is hindered by the shape of the graphene sheets because it takes a long time for the lithium to travel from one side of the sheet to the other.Sometimes a "traffic jam" occurs around the edges of the graphene. To solve this problem, Kung's team used a special chemical process to create tiny holes of 10 to 20 nanometers wide in the graphene sheets so the lithium ions would have a "shortcut" and be able to travel directly to the other side. This reduced the time it took the battery to recharge. About 15 minutes of charging can last more than a week. "Even after 150 charges, which would be one year or more of operation, the battery is still five times more effective than lithium ion batteries on the market today," said Kung. The technology could be widely available within five years, the researchers said.
Question: What is the major problem of current rechargeable batteries?
Options: (A) They are not very stable. (B) They cannot hold enough silicon. (C) They have limited energy capacity. (D) The space between the graphene sheets is too big.
Asnwer: A

Ex Output:
No

Ex Input:
Article: Just five one-hundredths of an inch thick, light golden in color1 and with a perfect "saddle curl," the Lay's potato chip seems an unlikely weapon for global domination. But its maker, Frito-Lay, thinks otherwise. "Potato chips are a snack food for the world," said Salman Amin, the company's head of global marketing. Amin believes there is no corner of the world that can resist the charms of a Frito-Lay potato chip. Frito-Lay is the biggest snack maker in prefix = st1 /Americaowned by PepsiCo and accounts for over half of the parent company's $3 billion annual profits. But theU.S.snack food market is largely saturated, and to grow the company has to look overseas. Its strategy rests on two beliefs: first a global product offers economies of scale with which local brands cannot compete. And second, consumers in the 21st century are drawn to "global" as a concept. "Global" does not mean products that are consciously identified as American, but ones that consumes--especially young people are linked across cultures by shared beliefs and tastes. Potato chips are an American invention, but most Chinese, for instance, do not know that Frito-Lay is an American company. Instead, Riskey, the company's research and development head, would hope they associate the brand with the new world of global communications and business. With brand perception a crucial factor, Riskey ordered a redesign of the Frito-Lay logo .The logo, along with the company's long-held marketing image of the "irresistibility" of its chips would help facilitate the company's global expansion. The executives acknowledge that they try to swing national eating habits to a food created in America, but they deny that amounts to economic imperialism . Rather, they see Frito-Lay as spreading the benefits of free enterprise across the world. "We're making products in those countries, we're adapting them to the tastes of those countries, building businesses and employing people and changing lives," said Steve Reinemund, PepsiCo's chief executive.
Question: It is the belief of Foito-Lay's head of global marking that _ .
Options: (A) Potato chips can hardly be used as a weapon to dominate the world market (B) People all over the world enjoy eating their company's potato chips (C) The light golden color1 enhances the charm of their company's potato chips (D) Their company must find new ways to promote domestic sales
Asnwer: C

Ex Output:
No