Question: David works as a nutritionist with the public health department. He categorized the certain sections of his county's population. First he categorized boys and girls between nine and thirteen years as cat A. Then he put girls between fourteen and eighteen years in cat B, and boys of the same age in cat C. Lastly, he categorized pregnant women as cat D. He needs to recommend healthy diet, especially iron intake, for each group. Which group would need more iron, cat C or cat D?
Answer: cat D
[Q]: Planet Neptune is not only very cold but also farther from the Sun than the Earth. In fact, it is the farthest planet from the Sun in our solar system. On the other hand, the Earth enjoys a close proximity to the Sun. Only Mercury and Venus are closer to the Sun than the Earth. Would Neptune travel shorter or longer distance than Earth?
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[A]: longer
input: Please answer the following: Two people went to the eye doctor's office for an annual exam; James had farsightedness, while Bob had myopia. Which person had to wear convex lenses?
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output: James
Please answer this: David is experimenting with electromagnetic waves. He has four different waves to study, wave A, wave B, wave C, and wave D. In wave A, distance between two corresponding points on adjacent waves is greater than that of wave B. In wave C, the number of waves that pass a fixed point in a given time is greater than that of wave D. Which wave has lower frequency, wave A or wave B?
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Answer: wave A
Problem: Two sisters Mary and Beth were into sciences. Beth studied physics, while Mary studied chemistry and especially alkanes. They were very devoted to studying. Which sister studied more about the melting points of alkanes?

A: Mary
input: Please answer the following: Two neighboring gulfs had different geographical features. South gulf has shallow water and is wider, while North gulf is quite deep. Both gulfs are exposed to intense wave activity throughout the year. Which gulf experiences less free orbital motion disruption when waves hit?
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output:
North