Please answer this: John was sitting at point C near a railway track. Suddenly, he heard a train coming towards him from point A with constant sound of its horn. Eventually, it reached very close to him at point B. Then the train sped by him at point C where he was sitting, reaching point D after some time. Finally, it reached even farther from him at point E. Given the paragraph above, please answer correctly the following question: Which point would have higher frequency, point D or point E?
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Answer: point D
Problem: The Marlan Sea and the Jowal Sea are two bodies of water currently being studied by scientists at the Hamford Research Complex. The goal of the study is to find out which sea would be a better choice to support the construction of an experimental underwater laboratory. The employees first begin by analyzing the surrounding regions of the two seas. They discover that the Marlan Sea has many rivers flowing into it. The vast majority of these rivers are located near farms that grow crops to sell to the local cities. The Jowal Sea is surrounded by mostly uninhabited land. The rivers that flow into it have almost no human civilizations near them and instead are surrounded by flat plains and some forests. Given the paragraph above, please answer correctly the following question: Marine pollution will be a smaller concern for which sea?

A: Jowal
Problem: Given the question: John is a geologist. He was trying to figure out how the Earth's inner core is made. To that end, he compared earth's physical characteristics to available items. First he took a sample of surface rock, which he labeled as item B. Then he took a sphere of constant density, which he labeled as item C. Finally, he labeled the Earth as item A. Given the paragraph above, please answer correctly the following question: Which would be lighter, item A or item B?
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The answer is:
item B
input question: Two continents were known for the strange discrepancies in animal populations. Asia was mostly populated by reptiles of all species, while Africa was mostly populated by birds and very few reptiles. Given the paragraph above, please answer correctly the following question: Which continent was inhabited by fewer crocodiles????
output answer: Africa
Nigeria invested in sand mining and started mining coastal barriers. Congo continued preserving their picturesque beaches. Given the paragraph above, please answer correctly the following question: Which country destroyed more fisheries?
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Answer: Nigeria
Q: Two brothers Syd and Dan went to college. Syd studied plate tectonics and mantle melting. His brother Dan got to study types of soil and pedology. Given the paragraph above, please answer correctly the following question: Which brother studied more about the influence sediments have on mantle melting?
A:
Syd