In this task, you're given an article, a question which often contains a blank and four options (associated with "A", "B", "C", "D"). Your task is to find the correct answer (from the given options) for the question from the given article and return one of the options from "A", "B", "C", and "D". Do not generate anything else apart from one of the following characters: "A", "B", "C", "D". There is only one correct answer for each question.

[Q]: Article: Humans aren't the only ones getting a buzz from coffee.Caffeine can improve memory among honeybees and lead to better pollination .According to a recent study published in the journal Science. The study was conducted by a team of researchers at Newcastle University in the United Kingdom.They found that the nectar of some flowers,such as those from grapefruit and lemon plants,as well as certain coffee flowers,contains low doses of caffeine.To get bees to feed on these flowers,the team trained the insects to associate food with the smell of the flowers.They also trained another group of bees to feed on nectar from flowers that were sweetened with a sugar, but did not contain caffeine.After 24 hours,the bees trained on caffeinated flowers returned to these plants three times as often as those trained on the sweetened flowers returned to the uncaffeinated plants. Professor Geraldine Wright led the researchers."Remembering floral traits is difficult for bees to perform at a fast pace as they fly from flower to flower and we found that caffeine helps the bee remember where the flowers are,"Wright said in a statement. Improved memory led to the better pollination.That's because once bees sip the caffeine nectar, they continue to look for more coffee plants to pollinate.This also suggests that caffeine plays a role in improving the bees'ability to search for food. Researchers found that caffeine's effect on the bee brain is similar to its effect on mammals."The change is similar to that produced by caffeine in neurons associated with learning and memory in the rat brain,"Wright said. Bee populations have declining since 2007.The dramatic drop in the insects'numbers has serious effects for ecosystems and the farming industry.Bees are needed in the reproduction of crops and spreading wild flower species.Understanding what keeps bees buzzing could help to make sure that the insects are able to remember and pollinate their favorite flowers.
Question: Which of the following is mentioned in the passage?
Options: (A) Caffeine has no effect on the rat brain. (B) Bee population has been increasing. (C) The nectar of lemon plants contains caffeine. (D) Bees dislike nectar from sweetened flowers.
[A]: C

[Q]: Article: VOIP stands for Voice Over Internet Protocol. It is also referred to as IP Telephony. It is another way of making phone calls, though the 'phone' part is not always present any more, as you can communicate without a telephone set. VOIP is especially popular with long distance calls. The main reason for which people are so massively turning to VOIP technology is the cost. VOIP is said to be cheap, but most people use it for free. Yes, if you have a computer with a microphone and speakers, and a good Internet connection, you can communicate using VOIP for free. There are basically three ways of using VOIP. One is to have a PC on both communicating sides; another is to have a phone on one side and a PC on the other and the third is to have two phones. VOIP is a ly new technology and it has already achieved wide acceptance and use. There is still a lot to improve and it is expected to have major technological advances in VOIP in the future. It has so far proved to be a good candidate for replacing the POTS (Plain Old Telephone System). It, of course, has drawbacks along with the numerous advantages it brings; and its increasing use worldwide is creating new considerations surrounding its regulations and security. The growth of VOIP today can be compared to that of the Internet in the early 90's. The public is getting more and more conscious of the advantages they can get from VOIP at home or in their businesses. Advertising campaigns, which are present everywhere on the net, are contributing a lot towards the popularization of VOIP which not only gives facilities and allows people to save, but also producing huge income for those who dived early into the new phenomenon.
Question: The author writes the passage mainly to _ .
Options: (A) ask readers to buy the new type of production. (B) tell us how fast the modern technology is developing. (C) introduce a new type of IP technology---VOIP. (D) teach the readers how to use VOIP.
[A]: C

[Q]: Article: In 1859, prefix = st1 /ItalyandFrancewere at war withAustria, and Henry Dunant, a young Swiss gentleman, came upon one of their battlefields. For the first time in his life, Dunant saw how heartless war would be. Around him were suffering men untended and left to die where they fell. Henry Dunant went to work at once. Helped by several peasant women, he formed an ambulance service and set up headquarters in a little church. He treated the wounds of Frenchmen, Italians and Austrians alike. When he was asked why he did so, his answer showed a spirit of humanity that was not common in those days. "We are all brothers. A wounded enemy is an enemy no longer." With his band of assistants, Dunant helped to save many lives. The "gentleman in white" (as Dunant was called because he wore a white suit) was looked upon by hundreds of wounded men as an angel. When Dunant returned toSwitzerland, he could not forget the needless suffering on the battlefield. He thought of a great organization that should be planned to include many nations. It would do its work with the approval of all countries. And it must operate under a sign that all would know: its symbol would be a red cross against a white background. He wrote a book to make the public see the need for this great organization. In the book he included a truthful account of what he had seen on the battlefield. The consequence was that readers were shocked by what he described. After Dunant's hard work, in Geneva on October 26, 1863, all the nations of Europe were invited to a meeting at which it was decided a relief society should be formed in each country. Then the Geneva Convention was made the following year. The nations that signed the Geneva Convention chose the red cross as the symbol for the international organization. Until his death in 1910, Dunant was always ready to look for a noble cause. And when the Nobel Peace Prize was awarded for the first time in 1901, the honor went to Dunant. No man has deserved it more than the founder of the Red Cross.
Question: Why was Dunant looked upon as an angel by wounded men?
Options: (A) Because he really came from the heaven to help. (B) Because he wore a white suit. (C) Because he helped to save many lives. (D) Because he was good-looking.
[A]:
C