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: Natural selection is the process by which living things with beneficial traits produce more offspring, so their traits become more common over time.
 Question: Milo breeds cats for a living. If he wants his cats to share a specific trait, what should he do to the amount of offspring each cat produces? 
 Choices: A)decrease 
B)increase
[EX A]: increase

[EX Q]: Paragraph: At higher concentrations, particles of reactants are crowded closer together, so they are more likely to collide and react.
 Question: If Mona has filled a balloon with helium and she removes some gas from it, what happens to the likelihood that the helium particles will collide with each other? 
 Choices: A)more likely 
B)less likely
[EX A]: less likely

[EX Q]: Paragraph: But the more computing power that goes into the model and the care with which the scientists construct the model can increase the chances that a model will be accurate.
 Question: A model created with less computing power should have a _____ chance of being accurate. 
 Choices: A)lower 
B)higher
[EX A]:
lower