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 further objects are away from each other, the smaller the gravitational force.
 Question: The sun exerts gravitational force on all the planets, which has a lower gravitational force 
 Choices: A)earth 
B)mars
[EX A]: mars

[EX Q]: Paragraph: Bigger stars produce more energy, so their surfaces are hotter.
 Question: Would a small star be 
 Choices: A)hotter 
B)colder
[EX A]: colder

[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 smaller container is 
 Choices: A)more acidic 
B)less acidic.
[EX A]:
more acidic