Problem: Given the question: Write a multi-choice question for the following article, with the given choices and answer: Article: A blue hole is a flooded sea cave with a hole that opens up at the land's surface. These cave systems form in carbonate rock, often on islands. Some blue holes have very special rock formations and water chemistry. Far below sea level, they contain some of the harshest environments on Earth, with no oxygen and no light. Yet these areas are filled with life forms that have adapted to the extreme conditions. Information gathered from these blue holes is helping scientists to increase their understanding of biology, archaeology and geology. But exploring these blue hole environments brings danger as well as discovery. Blue holes get their name from the color1 some have when seen from the air. The color1 is usually a reflection of the sky on the water. But not all of these cave systems have blue surfaces. Some contain dark or muddy water. Blue holes are the result of erosion in which water breaks down rock. Rain falling thousands of years ago contained chemicals which slowly wore away at the limestone landmass. These holes were later filled with sea water as the sea level changed. The rising and falling of sea levels and the mixture of salt and fresh water further wore away at these cave formations. Blue holes are vertical caves. But they can also have horizontal cave formations that may be hundreds of meters long. These flooded cave systems can be found in the ocean, or they can be found inland. Ocean caves are affected by tides, so they always have water movement. But blue holes on land are very still. They have several layers of water, chemicals, and bacteria. The top layer of fresh water comes from rainfall. This layer acts like a cap on top of the layered mixture, and keeps out oxygen from the atmosphere. The fresh water floats on a denser layer of saltwater. Underneath this is a layer of poisonous hydrogen sulfide, produced by bacteria living in the water. Underneath this layer is anoxic seawater -- water that does not contain any oxygen. Underwater caves are probably one of the least explored ecosystems... Options: A have a thin rope as a guideline anytime B wear glasses in case of bright blue light C swim as quickly as possible to save time D learn to make good use of their air supply Answer: D learn to make good use of their air supply Question:
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The answer is:
When exploring blue holes, divers must _ .

input question: Write a multi-choice question for the following article, with the given choices and answer: Article: Thousands of students, from all around the world, have helped their international careers by taking EIS English studies at South Thames College London - STCL. You too can take our first-class EIS courses to learn, and live English in London @ STCL. 1. Our experience We have provided English for International Students EIS courses to people from around the world for 40 years. More than 1,000 students take our EIS courses each year, often after a recommendation from a friend or relative. Our teachers have worked in many countries; their experience will help you to develop international English communication skills. 2. A world in one college The College has students from more than 100 countries. When you study English with us, you will have the opportunity to meet not only UK students, but also people from all over the world. 3. _ The College's main purpose is to provide education and training for our local community. We have more than 20,000 students, on a range of academic, technical and vocational courses in addition to English language courses. All students can also use the facilities available at the college--library services, free Internet access, sports & more. You can join a range of leisure and social activities. 4. Assured quality STCL is a member of English UK, the national association of accredited English language centers. Our EIS courses meet the quality standards of Accreditation UK and are accredited by the British Council. 5. Our range of courses We have a wide range of courses designed to meet the needs of global citizens in an international environment. Our courses prepare you both for life in London - perhaps as a student - and for your future career, anywhere in the world. We help you improve your English so you can communicate more effectively - for study, work or socializing... Intensive courses meet UK immigration regulations for students. For information about out intensive English courses, click here. Options: A Our recreation resources B Free services in STCL C More than an English school D Carefully designed activities Answer: C More than an English school Question:???
output answer: Which can be the best heading of Part 3?

Please answer this: Write a multi-choice question for the following article, with the given choices and answer: Article: BBC London Tributes continue to be paid at home and abroad to Margaret Thatcher after her death at the age of 87. David Cameron, the present Prime Minister, said she had been a "great Briton" while US President Obama called her a "great champion of freedom and liberty". Her funeral is expected to be held next week. Thatcher, Britain's first female premier, was in power from 1979 to 1990 and won three successive general elections. She died "peacefully" after suffering a stroke on April 8th 2013. She will not have a state funeral but will be accorded the same status as Princess Diana and the Queen Mother. The Union Jack above Number 10 Downing Street has been lowered to half-mast to pay tributes. "In an era in which politicians are all too often greeted with indifference, it is easy to forget that Britain was once led by a woman who inspired passion." says Nick Robinson, a well-known BBC political editor. After cutting short a trip to Europe to return to London, Cameron described Thatcher as "the patriot prime minister" and "greatest peacetime" leader. While acknowledging that she had "divided opinion", Cameron said she had "taken a country that was on its knees and made it stand tall again." "Thatcher loved this country and served it with all she had," he added. Her other successors in No 10--- Sir John Major, Tony Blair and Gordon Brown --- paid tribute to her strength of character and political purpose while Labour leader Ed Miliband said Thatcher had been a "unique figure" who "reshaped the politics of a whole generation." But critics and her opponents questioned the economic and social impact of her policies, ex-Labour leader Lord Kinnock saying her economic policies had been a "disaster for Britain" at the time. Among international reaction, Obama said "America has lost a true friend" while German Chancellor Angela Merkel said she would "never forget her part in overcoming the division of Europe". Nick Robinson said Thatcher, who had suffered poor health for several years, would always be a divisive... Options: A Thatcher' Contributions to Her Homeland B The First Prime Minster of England C Tributes Paid At Home and Abroad D A Successful British Woman Answer: C Tributes Paid At Home and Abroad Question:
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Answer:
Which of the following can be used as the title of the news?