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).

[Q]: Paragraph: The hotter a main sequence star is, the brighter it is.
 Question: A main sequence star that is very bright is not among the _____ stars 
 Choices: A)hottest 
B)coolest
[A]: coolest


[Q]: Paragraph: Rougher surfaces have more friction between them than smoother surfaces.
 Question: Eric rubs together tissue paper and then sandpaper. The smoother tissue paper has _____ friction than the sandpaper. 
 Choices: A)less 
B)more
[A]: less


[Q]: Paragraph: As the liquid particles lose energy, their movement slows down even more. As their movements become slower and slower, the attractive forces between become stronger.
 Question: If Mona is pushing a sled and she begins to get energized, her energy levels rise. What happens to the movement of the sled? 
 Choices: A)increase 
B)decrease
[A]:
increase