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.

[Q]: Article: Australia is the largest island in the world. It is a little smaller than China. It is in the south of the earth. Australia is big, but its population is small. The population of it is nearly as large as that of Shanghai. We cannot believe it is such a big country with so small population! Enough laws have been made to fight against pollution. The cities in Australia have little air or water pollution. The sky is blue and the water is clean. You can clearly see fish swimming in the rivers. Plants grow very well. Last month we visited Perth, the biggest city in Western Australia, and went to a wild flowers. Exhibition In spring every year Perth has the wild flower exhibition. After visting Perth, we spent a day in the countryside. We sat down and had a rest near a path at the foot of the hill. But what we saw made us pick up all our things and run back to the car as quickly as we could--there were about three hundred sheep coming towards us down the path! Australia is famous for its sheep and kangaroos. After a short drive from any town, you will find yourself in the middle of white sheep. Sheep ,sheep, everwhere are sheep.
Question: Australia is _ w
Options: (A) the largest country in the world (B) larger than China (C) as large as Shanghai (D) not so large as China
Asnwer: D
[A]: Yes

[Q]: 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
[A]: No

[Q]: Article: Tom Sawyer is known as one of the most beloved characters in American literature , but new research found that Mark Twain based this character on his friend named Tom Sawyer. He admired his firefighting friend so much that he gave the character his name. Mark Twain and Tom Sawyer had many adventures together, gambling in Nevada and drinking in pubs. Tom Sawyer once worked as a volunteer firefighter, policeman and customs officer. Before making his way out West, Tom Sawyer used his strength to save 90 people from a burning ship. Mark Twain was particularly moved by this story because his own brother died in a fire while working on a similar steamboat. The two men became friends immediately after meeting in 1863, with Tom Sawyer traveling to Virginia City, while Mark Twain was working as a reporter there. After one night they returned to San Francisco, Mark Twain told his friend that he would base a character in his yet-unwritten book on him. Tom Sawyer said, "One day he said to me, 'I'm going to put you between the covers of a book, Tom.' 'Go ahead, Sam,' I Said, 'but don't disgrace my name.'" Besides their fondness of drinking, the two men also shared a hobby for storytelling. Tom sawyer believed that it was his anecdotes about his own childhood that inspired Mark Twain to create a book on him. Finally Mark Twain said that the character of Tom sawyer was based on a mix of three real people---John B. Briggs, William Bowen and himself. In spite of this, the historical evidence shows that there might be a fourth, more prominent influencer.
Question: The text mainly tells us that _ .
Options: (A) Tom Sawyer is a popular character in Mark Twain's work (B) Mark Twain based Tom Sawyer on his friend's name (C) Mark Twain and Tom Sawyer are childhood friends (D) Tom Sawyer helped Mark Twain write a popular book
Asnwer: C
[A]:
No