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: Bacteria with a mutation the helps resist antibiotics increase in numbers, so the mutation becomes more common.
Question: Eric notices an decrease in antibiotic resistance in a certain bacteria. The mutation that causes the resistance has become _____ common
Choices: A)more
B)less
[EX A]: less

[EX Q]: Paragraph: Therefore, increasing the surface area of solid reactants increases the reaction rate.
Question: If you break up something before putting it into water it will dissolve
Choices: A)slower
B)faster
[EX A]: faster

[EX Q]: Paragraph: When a volume of water is cooled, the molecules move less vigorously, so same number of molecules takes up less space and the water is denser.
Question: When we lower the temperature of water it becomes
Choices: A)less dense
B)more dense
[EX A]:
more dense