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 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 Jim is screwing in two bolts and the first one has threads that are close together while the second one has threads that are far apart, which one must he apply greater force to? 
 Choices: A)first bolt 
B)second bolt
[EX A]: first bolt

[EX Q]: Paragraph: The closer objects are, the stronger the gravitational pull between them.
 Question: If Mona moves her baseballs farther apart, what happens to the gravitational pull between them? 
 Choices: A)increases 
B)decreases
[EX A]: decreases

[EX Q]: Paragraph: Size restriction: The final body size is limited because as the body size increases, the surface area to volume ratio decreases.
 Question: As Jimbo's body size shrinks due to a shrinking spell, what happens to his surface area to volume ratio? 
 Choices: A)gets bigger 
B)gets smaller
[EX A]:
gets bigger