You are given a short paragraph, a question and two choices to answer from. Choose the correct answer based on the paragraph and write the answer(not the key).

[Q]: Paragraph: A higher-frequency wave has more energy than a lower-frequency wave with the same amplitude.
Question: A wave with more energy than another will have a _____-frequency.
Choices: A)lower
B)higher
[A]: higher

[Q]: Paragraph: Solar power is expensive, but as demand increases technology improves and costs decrease.
Question: If demand for solar power were to fall, the power would become _____ expensive.
Choices: A)less
B)more
[A]: more

[Q]: Paragraph: As you increase the number of carbon atoms in a hydrocarbon, the number of isomers quickly increases.
Question: Dean wants to get a smaller number of isomers to observe, so in order to do so quickly, he takes the number of carbon atoms in a hydrocarbon, and makes them
Choices: A)decrease
B)increase
[A]:
decrease