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: With a higher the concentration of hydrogen ions, a solution is more acidic and has a lower pH.
 Question: A small container that has 100 hydrogen ions is sitting near a larger container that has 2 hydrogen ions. The solution in the larger container is 
 Choices: A)more acidic 
B)less acidic.
[EX A]: less acidic.

[EX Q]: Paragraph: The voice becomes deeper as the larynx in the throat grows larger.
 Question: As a boy grows to a man and his larynx grows smaller, his voice gets 
 Choices: A)deeper 
B)higher.
[EX A]: higher.

[EX Q]: Paragraph: Lighter, more streamlined vehicles need less energy.
 Question: Jim is designing a new car and playing around with different materials. If he were to decrease the weight of the vehicle, what would happen to the fuel efficiency of that vehicle? It would 
 Choices: A)increase 
B)decrease
[EX A]:
increase