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: When a person exercises regularly, and is fit, the heart undergoes certain long-term adaptations. The heart muscle gets stronger, and expels more blood with each contraction.
 Question: Rich works out every day. Paul does not work out at all. Whose heart expels less blood per contraction, resulting in lower BPM? 
 Choices: A)Rich 
B)Paul
[EX A]: Paul

[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: When we use weak technology to measure something it becomes 
 Choices: A)more accurate 
B)less accurate
[EX A]: less accurate

[EX Q]: Paragraph: A: As the car approaches the radar gun, the reflected microwaves get bunched up in front of the car. Therefore, the waves the receiver detects have a higher frequency than they would if they were being reflected from a stationary object. The faster the car is moving, the greater the increase in the frequency of the waves.
 Question: Officer Ricky points a radar gun at a car. A speeding car likely has _____ frequency waves bouncing off of it. 
 Choices: A)higher 
B)lower
[EX A]:
higher