Problem: Given the question: 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 higher frequency, wave A or wave B?
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The answer is:
wave B

Problem: Given the question: Two medical school students named Dan and Bob learned about the human immune system. Dan studied more about the subject, and became very interested to pursue it more in the future. Which student learned that the infected skin area may become painful?
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The answer is:
Dan

Problem: Given the question: Two chickens are living on the same farm. Chicken A has just been infected with a parasite, but Chicken B does not have the parasite. Chicken A probably got it when it went swimming out in the old stagnant lake while the other chickens were sleeping. Which chicken is more likely to get sick?
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The answer is:
Chicken A