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.

Ex Input:
Article: It does not come as a surprise that Dubai has a growing problem with "tragic". The local rulers have explored all the conventional ways to get traffic moving again,including higher prices for parking,fuel and insurance. But at a recent conference in Hamburg, Hussain Lootah said that the city may adopt a more strict approach: setting an income level for vehicle ownership. Mr Lootah's approach is unlikely to be copied widely, but mayors of other big cities around the world are starting to think about taking severe actions of their own, including complete car bans in inner cities.But the efforts may not be enough to reduce traffic and pollution. The problems will only get worse: the number of vehicles sold globally each year will grow from around 80 million today to more than 100 million by the end of the decade, according to IHS Automotive. There are already a handful of car-free communities around the world.But these are typically small and often tourist destinations that seek to create a throwback(;) in time, such as Sark Island, in the English Channel. The largest car-free urban area is probably Venice, where it is impossible to build roads and bridges to link the more than 100 small islands the city sits on. Yet pedestrian malls and other car-free zones keep popping up in cities around the world. Some cities are considering ways to limit central city access to "green" machines, such as battery-electric vehicles. Hamburg is perhaps the furthest along. Such extreme plans may fly in a city such as Hamburg. But in many other cities the political resistance even to less far-reaching measures is hard to overcome. Michael Bloomberg, New York's former mayor, tried twice to introduce a jam charge for much of Manhattan, but his plans were rejected by state lawmakers.
Question: It is still hard to reduce traffic problems, because _ .
Options: (A) Mr Lootah's approach will be copied widely. (B) mayors take gentle measures toward them. (C) more vehicles will be sold globally each year. (D) complete car bans in inner cities are not made.

Ex Output:
C

Ex Input:
Article: When the US started the war in Iraq a year ago, Spain was a firm supporter. But on April 18, the Spanish government started to remove its troops, becoming the first country in the US-led coalition to bring its soldiers home. The person behind this surprise move is the new Spanish prime minister, Jose Luis Rodriguez Zapatero. A few months ago, he was hardly known outside his small hometown in northern Spain. Even a week before last month's general election, Zapatero was still considered an outsider for the top job. But just three days before the vote, a series of bomb attacks on three train stations in Madrid killed 191 people and injured some 1,900. It was Spain's worst ever terrorist attack and it changed everything -- even making Zapatero prime minister. From the beginning, the 43-year-old former lawyer, knew the weaknesses of Prime Minister Jose Maria Aznar and his hand-picked successor, Mariano Rajoy. About 90 per cent of the Spanish people were against the war in Iraq and were unhappy that Aznar had taken them into it. So Zapatero promised: "If this party wins the election and the UN still can't take charge in Iraq, the new government will pull its 1,400 troops out of Iraq." Despite focusing on this and other Aznar mistakes, Zapatero's chances of victory were still thin until the Madrid bombings. At first, the government blamed ETA, a separatist terror group from the Basque region of northern Spain. But later evidence suggested the attack was carried out by al-Qaida members angry at Spain's presence in Iraq. The people were upset, and they showed this by voting for Zapatero. Many accused the government of covering up information about the bombings and only blaming ETA so it wouldn't lose to an anti-war vote. In a move that was as shocking to the world as his election victory, Zapatero chose to carry out his promise the day after he took office. And its effect could be long-lasting. As the situation in Iraq worsens, several countries are considering their positions. The US is worried that other coalition members might follow Spain's lead and also bring their soldiers home.
Question: Why did the Spanish government try to hide the truth from the public at first?
Options: (A) They feared the terrorists would escape. (B) They were not quite sure who on earth made the attacks. (C) They were worried that they would lose the coming election. (D) They attempted to get rid of all ETA members.

Ex Output:
C

Ex Input:
Article: Why play games? Because they are fun, and a lot more besides. Following the rules...planning your next move...acting as a team member...these are all "game" ideas that you will come across throughout your life. Think about some of the games you played as a young child, such as rope-jumping and hide-and-seek. Such games are entertaining and fun. But perhaps more importantly, they translate _ that teach children some of the basic rules they will be expected to follow the rest of their lives, such as taking turns and cooperating . Many children's games have a practical side. Children around the world play games that prepare them for work they will do as grown-ups. For instance, some Saudi Arabian children play a game called bones. Which sharpens the hand-eye coordination needed in hunting. Many sports encourage national or local pride. The most famous games of all, the Olympic Games, bring athletes from around the world together to take part in friendly competition. People who watch the event wave flags, knowing that a gold medal is a win for an entire country, not just the athlete who earned it. For countries experiencing natural disasters or war, an Olympic win can mean so much. Sports are also an event that unites people. Soccer is the most popular sport in the world. People on all continents play it--some for fun and some for a living. Nicolette Iribarne, a Californian soccer player, has discovered a way to give people hope through soccer. He created a foundation to provide poor children with not only soccer balls but also a promising future. Next time you play your favorite game or sport, think about why you enjoy it, what skills are needed, and whether these skills will help you in other aspects of your life.
Question: Through playing hide-and-seek, children are expected to learn to _ .
Options: (A) be a team leader (B) obey the basic rules (C) act as a grown-up (D) predict possible danger

Ex Output:
B