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: Compared to high heels , they don't look dangerous, but flip-flop wearers should think twice before slipping on a pair. The National Health Service spends PS40 million a year treating injuries caused by wearing the casual footwear. More than 200,000 people end up in hospital every year after suffering falls or developing long-term problems. Once worn only at the beach, flip-flops have become the regular summer footwear of choice for women, with two in five women owning at least one pair. But experts are warning the public of the dangers of wearing flip-flops, such as the risk of joint pains. They say flip-flops force people to change the way they walk so that when taking a walk with long steps they put pressure on the outside of their foot, rather than their heel, causing long-term damage. And there is also the risk of serious injury. Frequent complaints include twisted ankles, but some have broken their arms or wrists after falling because their flip-flops caught on uneven ground. Many also suffer aching toes as they constantly wear them. Mike, a spokesman, warned wearers of the damage done by flip-flops. He said, "They land on the outside and then roll the foot inwards putting all the pressure on the big toe." This constant rolling puts pressure on the ankle joint, causing it to weaken. The lack of support of the flip-flop also causes pain on the inside of the foot and lower leg. And if you're not used to wearing them, they can cause blisters , he added. Doctors say flip-flops cause far more damage as they are worn for longer periods of time. Emma Supple, consultant podiatrist , said, "Flip-flops are universally popular. They are easy to put on and easy to wear but women do need to be mindful that wearing on hard flat surfaces can cause considerable foot and leg problems." She encouraged women to wear suitable shoes to help recover from summertime injuries.
Question: What is the text mainly about?
Options: (A) The benefits of wearing high heels. (B) The dangers caused by wearing flip-flops. (C) The advantages and disadvantages of wearing flip-flops. (D) Some advice on how to avoid injuries caused by wearing high heels.

A: B
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Q: Article: (PARIS) ----An English tourist who was highly praised for rescuing a three-year-old boy in Paris said he didn't think twice before diving into the freezing river. Tuesday's news said 25-year-old John Smith from England was the man who left the spot quickly after the rescue last Saturday. He lifted the little boy out of the water after he fell off the bank. He handed the child to his father, David Anderson, who had dived in after him. "I didn't think at all," John told the News. "It happened very fast. I reacted very fast." John, an engineer on vacation, was walking with his girlfriend along the pier when he saw something falling into the water. He thought it was a doll, but realized it was a child when he approached the river. Immediately, he took off his coat and jumped into the water. When he reached the child, he appeared lifeless, he said. Fortunately, when he was out of the water, he opened his eyes. Anderson said his son slipped off the bank when he was adjusting his camera. An ambulance came later for him, said John, who was handed dry clothes from onlookers. John caught a taxi with his girlfriend shortly after. The rescue happened on the day before he left for England. John said he didn't realize his story had greatly moved Paris until he was leaving the city the next morning. "I don't really think I'm a hero," said John. "Anyone would do the same thing."
Question: What is the probable reason why John was in Paris?
Options: (A) To meet his girlfriend. (B) To visit his parents. (C) To work as an engineer. (D) To spend his vacation.

A: D
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Q: Article: Cuba's former leader, Fidel Castro,died at the age of 90,according to a November 25 announcement on Cuban state television. The death marks the passing of a controversial figure who made a major impact on international affairs during his long rule. The Cuban government declared nine days of official mourning. On Monday, thousands of Cubans lined up near Havana's Plaza of the Revolution to pay their final respects to their leader. On Wednesday,Castro's ashes will begin a three-day journey across Cuba to Santa Ifigenia cemetery in Santiago de Cuba. Castro was born into a middle-class family on August 13 1926. He spent his childhood alongside the laborers on his father's plantation . In 1945, Castro entered the University of Havana as a law student. He later joined groups that sought to end dictatorships in Latin-American countries. On July 26. 1953,Castro staged an unsuccessful revolt against Batista's government. He and his brother Raul were captured and imprisoned for two years. After they were freed, the brothers went into exile in Mexico, On November 25, 1956,Castro set out once again to overthrow Batista. His revolution grew in strength. On New Year s Day 1959, Batista fled from Cuba. Castro took absolute power on January 8. The U.S. viewed Castro's relationship with the Soviet Union as a threat. In 1961,President John F. Kennedy approved the invasion of Cuba by 1,500 Cuban exiles. They landed on April 17 at the Bay of Pigs, but with little U. S. military support. Cuban troops smashed the attack within a few days. In October 1962,Castro confronted Kennedy during the Cuban Missile Crisis, during which he allowed the Soviet Union to place nuclear-capable missiles in Cuba. By that time, the U. S. had cut all relations with Cuba. After the Soviet Union collapsed in 1991,Cuba lost its economic support. To fuel the economy, the Cuban government allowed outside investment in hotels and resorts, but that created inequality. Meanwhile, Castro continued to crack down on any opposition. After undergoing intestinal surgery in 2006,Castro handed Cuba's presidency to Raul. The transition of power became official in 2008.
Question: Where did many Cubans line up to pay their final respects to Fidel Castro on Monday?
Options: (A) In Cuban Television Station. (B) Near Havana's Plaza of the Revolution. (C) In Santa Ifigenia cemetery. (D) Along the streets of Santiago de Cuba.

A:
B
****