You will be given a definition of a task first, then some input of the task.
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: 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
Output:
more oxygen in her blood now