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.
--------
Question: Passage: At the age of 10, West moved with his mother to Nanjing, China, where she was teaching at Nanjing University as part of an exchange program. According to his mother, West was the only foreigner in his class, but settled in well and quickly picked up the language, although he has since forgotten most of it. When asked about his grades in high school, West replied, "I got A's and B's. And I'm not even frontin'." Question: What University was the cause of West's mother moving the family to China?

Answer: Nanjing University

Question: Passage: The preludes, many of which are very brief (some consisting of simple statements and developments of a single theme or figure), were described by Schumann as "the beginnings of studies". Inspired by J.S. Bach's The Well-Tempered Clavier, Chopin's preludes move up the circle of fifths (rather than Bach's chromatic scale sequence) to create a prelude in each major and minor tonality. The preludes were perhaps not intended to be played as a group, and may even have been used by him and later pianists as generic preludes to others of his pieces, or even to music by other composers, as Kenneth Hamilton suggests: he has noted a recording by Ferruccio Busoni of 1922, in which the Prelude Op. 28 No. 7 is followed by the Etude Op. 10 No. 5. Question: What piece of Bach's did Chopin take inspiration for his preludes?

Answer: The Well-Tempered Clavier

Question: Passage: The city's total area is 468.9 square miles (1,214 km2). 164.1 sq mi (425 km2) of this is water and 304.8 sq mi (789 km2) is land. The highest point in the city is Todt Hill on Staten Island, which, at 409.8 feet (124.9 m) above sea level, is the highest point on the Eastern Seaboard south of Maine. The summit of the ridge is mostly covered in woodlands as part of the Staten Island Greenbelt. Question: How many feet above sea level is Todt Hil?

Answer:
409.8