Problem: Mark works as a scientist for a molecular research institute. Today, he has three samples of molecule in front of him, sample A, sample B, and sample C. Sample A is a straight-chain molecule; sample B is a branched-chain molecule; and sample C is a cyclic molecule. Mark's job is to determine the characteristics of each sample. Given the paragraph above, please answer correctly the following question: In which sample the chain of carbon atoms would form a ring, sample B or sample C?

A: sample C

Problem: The scientists examined both the Eastern and the Western slopes of the mountain. They reached the conclusion that the Western slope was inhabited by many more adult Tasmanian devils than the Eastern slope. Given the paragraph above, please answer correctly the following question: Which slope had more devils climbing up to 23ft?

A: Eastern

Problem: Two friends had different diseases. Nigel was more prone to viral infections, so one day he got infected with the HIV virus. Manny had contracted some sort of bacterial infection. Given the paragraph above, please answer correctly the following question: Which friend received more vaccinations?

A: Nigel

Problem: Two students at the Agricultural Institute studied pedology. Bob studied soil weathering, while Dan studied types of soil. Given the paragraph above, please answer correctly the following question: Which student studied less about the top layers of soil?

A:
Dan