[Q]: John is a nuclear scientist who works at the Fermi lab. Today, in front of him he has four samples, sample A, sample B, sample C, and sample D. Sample A is the naturally occurring uranium. Sample B is enriched uranium. Sample C is the U-238, and sample D is the U-235. He needs to figure out how to best use them. Which sample would more likely be used as fuel, sample C or sample D?
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[A]: sample D

[Q]: It is currently spring time where Jonathan lives, and there is a high amount of pollen in the air. When Jonathan goes outside his eyes start to water and become itchy, and he can't stop sneezing. Jonathan's brother, Thomas, was recently invited to a seafood dinner. Thomas decided to eat some shellfish, and a short while later he felt like his throat was closing up and it was becoming difficult to breathe. Who is less likely to be experiencing mild allergy symptoms?
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[A]: Thomas

[Q]: A pharmaceutical company is trying to find the cure for allergy. To that end, they conducted an experiment with two groups of subjects, group A and group B. They exposed the participants in group A to allergen, but they didn't expose the participants in group B to any allergen. The symptoms of these two groups would help them find the cure for allergy. Which group would experience nasal congestion, group A or group B?
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[A]: group A

[Q]: Planet X had two large oceans. Ice ocean had few submarine volcanoes, while Tropical ocean had thousands of active volcanoes on the ocean floor. Which ocean had more volcanoes blasting rocky debris high above its surface?
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[A]:
Tropical