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.

Article: Ask a teacher to name the most annoying invention of recent years and they will often mention the mobile phone. Disturbed by the problems they create, many head teachers have ordered that pupils should keep their phones switched off at school. Others have told pupils to leave them at home. However, education researchers at The University of Nottingham believe it is time that phone bans were reassessed, because mobile phones can be a powerful learning aid, they say. Dr Elizabeth Hartnell-Young and her colleagues have reached this conclusion after studying the consequences of allowing pupils in five secondary schools to use either their own mobile phones or the new generation of 'smartphones' in lessons. During the nine-month experiment, 14- to-16-year-old pupils used the phones for a wide range of educational purposes, including creating short movies, setting homework reminders, recording a teacher reading a poem, and timing experiments with the phones' stopwatches. The smartphones, which could be connected to the Internet, also allowed pupils to access revision websites, log into the school email system, or transfer electronic files between school and home. The research involved 331 pupils in schools in Cambridgeshire, West Berkshire and Nottingham. "At the start of the study, even pupils were often surprised at the thought that mobile phones could be used for learning," Dr Hartnell-Young said. "After their hands-on experience, almost all pupils said they had enjoyed the project and felt more inspired." Some teachers found that pupils who lacked confidence gained most from the project. However, they recognized that greater use of mobile phones in schools could cause problems.
Question: When the students first used mobile phones for learning, they _ .
Options: (A) all enjoyed the project very much (B) didn't know what they were used for (C) didn't fully realize the learning functions of mobile phones (D) were surprised that they were allowed to use mobile phones in schools
Asnwer: C
Yes

Article: More than a century ago, the composer and bandleader John Philip Sousa warned that technology would destroy music, who said, "These talking machines are going to ruin the artistic development of music in this country. When I was a boy ... in front of every house in the summer evenings you would find young people together singing the songs of the day or the old songs. Today you hear these terrible machines going night and day. We will not have a vocal cord left." Music has greatly changed in the past hundred years, which has been everywhere in our world: rivers of digital melody flow on the Internet or on disc; MP3 players with forty thousand songs can be put in a back pocket or a purse. Yet, for most of us, music is no longer something we do ourselves, or even watch other people do in front of us. It has become a radically virtual medium, an art without a face. Ever since Edison invented the phonograph cylinder , people have been assessing what the medium of recording has done for and to the art of music. Sousa was a spokesman for the party of doom; in the opposite corner are the utopians , who argue that technology has not imprisoned music but liberated it. Before Edison came along, Beethoven's symphonies could be heard only in select concert halls. Now the recordings carry the man from Bonn to the corners of the earth. Glenn Gould, after renouncing live performance in 1964, predicted that within the century the public concert would disappear into the electronic air. Having discovered much of my favorite music through LPs and CDs, I am not about to join Sousa's party. Modern urban environments are often so soulless or ugly that I'm grateful for the humanizing touch of electronic sound. But neither can I accept Gould's slashing futurism. I want to be aware of technology's effects, positive and negative. Fortunately, scholars and critics have been methodically exploring this _ for many decades, trying to figure out exactly what happens when we listen to music with no musicians in the room.
Question: The author's attitude towards the recorded music may best be described as _ .
Options: (A) dissatisfied (B) defensive (C) optimistic (D) objective
Asnwer: C
No

Article: A Samoan airline says that it is the world's first carrier to charge passengers by their weight. Samoa Air, which opened in 2012, asks passengers to give their personal weight during booking, which is then charged according to the length of a flight. The customers will also be weighed just before they board the plane. "It is believed that all people throughout the world are the same size," Samoa Air CEO Chris Langton said. "Airplanes always run on weight, not seats." "There is no doubt in my mind that this is the concept of the future. This is the fairest way of your travelling with your family or yourself." Though the airline introduced the plan last November, it caught people's attention last week when the carrier began international flights to neighboring American Samoa. Almost at the same time, a Norwegian economist, Bharat Bhatta, published a report suggesting that airlines should charge obese passengers more. The Pacific Islands contain some of the world's most common countries for obesity, many ranking in the top 10, according to the World Health Organization (WHO). Samoa is ranked number four, with 59.6 percent of the population considered obese, said the most recent WHO report. According to Samoa Air's latest schedule, the airline charges up to $0.57 per kg for flights in Samoa and $1.03 per kg for its only international flight to American Samoa, around 250 miles. Children under 12 are charged 75 percent of the adult rate, with fares also based on weight. Any overweight baggage is calculated at the same rate as the passenger's personal weight. The plan could actually prove cheaper in some cases, such as for families travelling with small children, and Langton said customer reaction has mainly been "amazingly positive". The idea of charging passengers by weight has been hotly discussed before, and in the US some airlines require those who do not fit into a seat comfortably to buy a second seat.
Question: In Bharat Bhatta's eyes, Samoa Air's plan might be _ .
Options: (A) funny (B) acceptable (C) strange (D) disappointing
Asnwer: B
Yes