TASK DEFINITION: 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.
PROBLEM: Article: Mark Twain left school when he was twelve. He had little school education. In spite of this, he became the most famous writer of his time. He made millions of dollars by writing. His real name was Samuel Langhorne Clemens, but he is better known to all over the world as Mark Twain, his penname. Mark Twain was born in 1835 and he was not a healthy baby. In fact, he was not expected to live through the first winter. But with his mother's care, he managed to survive. As a boy, he caused much trouble for his parents. He used to play jokes on all his friends and neighbors. He didn't like to go to school, and he often ran away from home. He always went in the direction of the nearby Mississippi. He was nearly drowned nine times. After his father's death, Mark Twain began to work for a printer, who only provided him with food and clothing. Then, he worked as a printer, a river-boat pilot and later joined the army. But shortly after that he became a miner. During this period, he started to write short stories. Afterwards, he became a full-time writer. In 1870, Mark Twain got married. In the years that followed he wrote many books including The Adventures of Tom Sawyer in 1876, and The Adventures of Huckleberry Finn in 1884, which made him famous, and brought him great fortune. Unfortunately, Mark Twain got into debts in bad investments and he had to write large numbers of stories to pay these debts. In 1904, his wife died, and then three of his children passed away. At the age of 70, his hair was completely white. He bought many white suits and neckties. He wore nothing but white from head to foot until his death on April 21, 1910.
Question: In Mark Twain's childhood, _ .
Options: (A) he learned a lot at school (B) his mother often worried about his safety (C) he often went swimming with other boys (D) he often played games with other boys

SOLUTION: B

PROBLEM: Article: A scientist working at her lab bench and a six-old baby playing with his food might seem to have little in common.After all,the scientist is engaged in serious research to uncover the very nature of the physical world,and the baby is,well, just playing...right?Perhaps,but some developmental psychologists have argued that this"play"is more like a scientific investigation than one might think. Take a closer look at the baby playing at the table.Each time the bowl of rice is pushed over the table edge,it falls in the ground---and, in the process, it belongs out important evidence about how physical objects interact ; bowls of rice do not flood in mid-sit, but require support to remain stable. It is likely that babies are not born knowing the basic fact of the universe; nor are they ever clearly taught it. Instead, babies may form an understanding of object support through repeated experiments and then build on this knowledge to learn even more about how objects interact. Though their ranges and tools differ, the baby's investigation and the scientist's experiment appear to share the same aim(to learn about the natural world ), overall approach (gathering direct evidence from the world), and logic (are my observations what I expected?). Some psychologists suggest that young children learn about more than just the physical world in this way---that they investigate human psychology and the rules of language using similar means. For example, it may only be through repeated experiments, evidence gathering, and finally overturning a theory, that a baby will come to accept the idea that other people can have different views and desires from what he or she has, for example, unlike the child , Mommy actually doesn't like Dove chocolate. Viewing childhood development as a scientific investigation throws on how children learn ,but it also offers an inspiring look at science and scientists. Why do young children and scientists seem to be so much alike? Psychologists have suggested that science as an effort ---the desire to explore, explain, and understand our world---is simply something that comes from our babyhood. Perhaps evolution provided human babies with curiosity and a natural drive to explain their worlds, and adult scientists simply make use of the same drive that served them as children. The same cognitive systems that make young children feel good about feel good about figuring something out may have been adopted by adult scientists. As some psychologists put it, "It is not that children are little scientists but that scientists are big children."
Question: According to some developmental psychologists,
Options: (A) a baby's play is nothing more than a game. (B) scientific research into babies; games is possible (C) the nature of babies' play has been thoroughly investigated (D) a baby's play is somehow similar to a scientist's experiment

SOLUTION: D

PROBLEM: Article: The value-packed, all-inclusive sight-seeing package that combines the best of Sydney's harbour, city, bay and beach highlights. A SydneyPass gives you unlimited and flexible travel on the Explorer Buses: the 'red' Sydney Explorer shows you around our exciting city sights while the 'blue' Bondi Explorer visits Sydney Harbour bays and famous beaches. Take to the water on one of three magnificent daily harbour cruises . You can also travel free on regular Sydney Buses, Sydney Ferries or CityRail services (limited area), so you can go to every corner of this beautiful city. Imagine browsing at Darling Harbour, sampling the famous seafood at Watsons Bay or enjoying the city lights on an evening ferry cruise. The possibilities and plans are endless with a SydneyPass. Wherever you decide to go, remember that bookings are not required on any of our services so tickets are treated on a first in, first seated basis. SydneyPasses are available for 3, 5 0r 7 days for use over a 7 calendar day period. With a 3 or 5 day pass you choose on which days out of the 7 you want to use it. All SydneyPasses include a free Airport Express inward trip before starting your 3, 5 0r 7 days, and the return trip is valid for 2 months from the first day your ticket was used. SydneyPass Fares Adult Child* Family** 3 day ticket $90 $45 $225 5 day ticket $120 $60 $300 7 day ticket $140 $70 $350 *A child is defined as anyone from the ages of 4 years to under 16 years. Children under 4 years travel free. **A family is defined as 2 adults and any number of children from 4 to under 16 years of age from the same family.
Question: A SydneyPass doesn't offer unlimited rides on _ .
Options: (A) the Explorer Buses (B) the harbour cruises (C) regular Sydney Buses (D) CityRail services

SOLUTION:
D