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).

[EX Q]: Paragraph: Wave frequency can be measured by counting the number of crests or compressions that pass the point in 1 second or other time period. The higher the number is, the greater is the frequency of the wave.
Question: If there are less crests coming through, there will be _____ wave frequency.
Choices: A)more
B)less
[EX A]: less

[EX Q]: Paragraph: Plug-in hybrids run for a longer time on electricity and so are less polluting than regular hybrids.
Question: Ian wants to produce less pollutants, so he buys a car that is a plug-in hybrid. The car will run on electricity better if it's plugged in for a
Choices: A)longer time
B)shorter time
[EX A]: longer time

[EX Q]: Paragraph: A stronger acid produces a greater concentration of ions than a weaker acid.
Question: If you added more citric acid to orange juice the acid levels would
Choices: A)decrease
B)increase
[EX A]:
increase