input question: Write a multi-choice question for the following article: Article: Fallingwater is a house built over a waterfall in Southwestern Pennsylvania. Frank Lloyd Wright, America's most famous architect, designed the house in 1935. It instantly became famous, and today it is a National Historic Landmark. Guided House Tour This tour features all the major rooms of the house and lasts about one hour. Photography is not permitted during this tour. The Guided House Tour allows children six-year-old and older to enjoy the house with their parents. Adults --$$ 20. 00 with advance purchase. --$$ 23. 00 when purchased on site Youth (ages 6~ 12) -- $$ 14. 00 with advance purchase -- $$ 17. 00 when purchased on site Daily from 10:00 am to 4:00 pm,except Wednesday. In-Depth Tour The tour is best if you desire a greater understanding of what Wright was seeking to create with his masterwork. The number of visitors on each tour is limited and photography is permitted for personal use only. Children nine years and older may accompany adults on this tour. $ 65. 00 per person(Available by advance ticket purchase only) Daily from 10: 00 am to 4: 00 pm Sunset Tour As afternoon turns to evening, the changing light allows you to see Fallingwater from an entirely new perspective. The number of visitors is limited and photography is permitted for personal use only. Children under nine-years-old are not permitted on this tour. $ 110. 00 per person(Available by advance ticket purchase only) May, June, & September-Saturdays at 4:30 p. m. July & August-Fridays and Saturdays at 4:45 p. m. Brunch Tour The guests join their guide for brunch before they leave. Children nine years and older may accompany adults on this tour. Please allow three hours total for this experience. $ 115. 00 per person(Available by advance ticket purchase only) May through September --Saturdays & Sundays at 9:00 a. m???
output answer: Question: What do the four tours mentioned have in common?Options:A They encourage advance ticketsB They offer brunch free of chargeC They forbid visitors taking photosD They have the same price of ticketsAnswer:A

Write a multi-choice question for the following article: Article: The year is 2094. It has been announced that a comet is heading towards the earth. Most of it will miss our planet, but two pieces will probably hit the southern half of the earth. On 17 July, a piece of 4 kilometers wide comet enters the Earth's atmosphere with a massive explosion . About half of the piece is destroyed, but the remaining part hits the South Atlantic at 200 times the speed of sound. The sea boils and a huge hole is made in the seabed. Huge waves are created and spread outwards form the hole. The wall of water, a kilometer high, rushes towards southern Africa at 800 kilometers an hour. Cities on the African coast are totally destroyed and millions of people are drowned . Before the waves reach South America, the second piece of the comet lands in Argentina. Earthquakes and volcanoes ash set off in the Andes Mountains. The shock waves move north into California and all around the Pacific Ocean. The cities of Los Angeles, San Francisco and Tokyo are completely destroyed by earthquakes. Millions of people in the southern half of the earth are already dead, but the north won't escape for long. Because of the explosions, the sun is hidden by clouds of dust, temperatures around the world fall to almost zero. Crops are ruined. The sun won't be seen again for many years. Wars break out as countries fight for food. A year later, no more than 10 million people remain alive. Could it really happen? In fact, it has already happened more than once in the history of the earth. The dinosaurs were on the Earth for over 160 million years. Then 65 million years ago they suddenly disappeared. Many scientists believe that the Earth was hit by a piece of object in space. The dinosaurs couldn't live through the cold climate that followed and they died out. Will we meet the same end?
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Answer: Question: Why can't the northern half of the earth escape for long?Options:A Because the land is covered with water.B Because the light and heat form the sun cannot reach the earth.C Because people there cannot live at the temperature of zero.D Because wars break out among countries.Answer:B

Problem: Given the question: Write a multi-choice question for the following article: Article: Once again, rumors are spreading. Judgment Day, this time, is set to happen on December 21st, 2012. The date originated from the Mayan calendar, but actually gained popularity through the hit movie, "2012". How will the world end? And how do we know the exact date? There are many theories: A meteoroid from outer space; a solar storm; a shift in the earth's poles; bla bla bla. They all supposedly pointed to the date of December 21st, 2012. Unfortunately, none of it is true. Zhu Jin, director of Beijing Planetarium, said, "For earth itself, the end will be billions of years away from now.And for us humans, there is a very small chance that we may be affected by some astronomical factors.However, we don't have the ability to foresee such events so far.So when someone tells you the world is going to end on an exact date, it must be fake." But the truth hasn't stopped people from believing. In the sci-fi movie "2012", the director imagined the end of the world based on the Mayan calendar. The film earned nearly 770 million US dollars worldwide. Ning Hong, Hebei Province, said. "The movie 2012 did get one thing right. There are arks being made in China, But they're not being built secretly inside the mountains.They are constructed here in the courtyard of a factory." In April, Liu Qiyuan quit his furniture business and devoted himself to developing these huge round balls. He doesn't believe the end is near, but he wants to be prepared just in case. Liu Qiyuan, the "Ark" builder, said, "The concept originated twenty years ago. The Tangshan earthquake had flattened our house, so I wanted to build a shelter that wouldn't fall. Then in 2004, I saw the tsunami in Indonesia that killed so many people.Then I realized it should be something that could withstand the earthquake and float on water." Liu is hoping to use his invention as a life boat on the sea.He's planning to test his product on the water next year. It turns out that rumor, though false, is good for business. Doomsday discounts and products are hot on...
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The answer is:
Question: The purpose of the movie "2012" was_.Options:A to make a profit from the viewersB to popularize scientific knowledge for the viewersC to tell the viewers an interesting factual storyD to warn the viewers of a disastrous eventAnswer:A