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 more cylinders a car engine has, the more powerful its engine can be.
 Question: Mona is designing a car in a factory. If she decides to remove cylinders from the car's engine, what happens to the power that engine can output? 
 Choices: A)increased 
B)decreased
decreased

Paragraph: Faster-moving water has more energy.
 Question: Ollie pours his water quickly while Fay pours her water slowly. Whose water contains more energy? 
 Choices: A)Ollie 
B)Fay
Ollie

Paragraph: Smoking reduces the amount of oxygen available for diffusion at the lungs, so less oxygen gets absorbed and blood is oxygenated to a lesser degree.
 Question: Suppose that Mary hasn't started smoking yet. If you measured the oxygen levels in her blood now and compared them to oxygen levels after she's been smoking for 20 years, what would you find? 
 Choices: A)less oxygen in her blood now 
B)more oxygen in her blood now

more oxygen in her blood now