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).

Paragraph: The trade-off when the threads are closer together, is that more turns of the screw or bolt are needed to do the job because the distance over which the input force must be applied is greater.
 Question: If you need to turn a screw more times that requires 
 Choices: A)less force 
B)more force
more force

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

Paragraph: More particles inside the container means more collisions, and more collisions mean a higher pressure.
 Question: Sara is in a container representing an object. Her container has 30 balls flying around, representing particles. Tyler is in another container, and his contains 5 balls. Which person's container likely would be under the most pressure? 
 Choices: A)Sara's 
B)Tyler's
Sara's