This task is about writing a correct answer for the reading comprehension task. Based on the information provided in a given passage, you should identify the shortest continuous text span from the passage that serves as an answer to the given question. Avoid answers that are incorrect or provides incomplete justification for the question.

[Q]: Passage: Reptiles such as adders and vipers live up to the snow line; because they cannot bear the cold temperatures they hibernate underground and soak up the warmth on rocky ledges. The high-altitude Alpine salamanders have adapted to living above the snow line by giving birth to fully developed young rather than laying eggs. Brown trout can be found in the streams up to the snow line. Molluscs such as the wood snail live up the snow line. Popularly gathered as food, the snails are now protected. Question: Why do reptiles only live up to the snow line?
[A]: they cannot bear the cold temperatures

[Q]: Passage: With the continued miniaturization of computing resources, and advancements in portable battery life, portable computers grew in popularity in the 2000s. The same developments that spurred the growth of laptop computers and other portable computers allowed manufacturers to integrate computing resources into cellular phones. These so-called smartphones and tablets run on a variety of operating systems and have become the dominant computing device on the market, with manufacturers reporting having shipped an estimated 237 million devices in 2Q 2013. Question: How many tablets were sold in 2Q 2013?
[A]: 237 million devices

[Q]: Passage: In 1880, the newspapers News and Observer combined to form The News & Observer. It remains Raleigh's primary daily newspaper. The North Carolina College of Agriculture and Mechanic Arts, now known as North Carolina State University, was founded as a land-grant college in 1887. The city's Rex Hospital opened in 1889 and included the state's first nursing school. The Baptist Women's College, now known as Meredith College, opened in 1891, and in 1898, The Academy of Music, a private music conservatory, was established. Question: What was North Carolina State called before?
[A]:
The North Carolina College of Agriculture and Mechanic Arts,