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: The more an elastic object is stretched or compressed, the greater its elastic potential energy is.
Question: Dan is snapping a rubber band at Sarah. He stretches the band as much as he can before he snaps it this time, which will mean its potential energy is
Choices: A)large
B)small
[EX A]: large

[EX Q]: Paragraph: At higher concentrations, particles of reactants are crowded closer together, so they are more likely to collide and react.
Question: Mike is watching how particles of reactants function, and sees that they are very far apart. Considering that the concentration of them is very low, the chance of them colliding together is
Choices: A)high
B)low
[EX A]: low

[EX Q]: Paragraph: Bases have pH values above 7. The higher the pH value, the more strongly basic the substance.
Question: Compared to vinegar, which is an acid, would lye, which is a strong base, have a pH value that is
Choices: A)higher
B)lower?
[EX A]:
higher