David and George are the same age and body weight. They are both resting quietly and have been for the last 10 minutes. David has a resting heart rate of 46, George has a resting heart rate of 74. Which is the correct interpretation?
A. David has a greater stroke volume and cardiac output than George.
B. David has a greater stroke volume and a similar cardiac output to George.
C. George has a greater stroke volume and cardiac output than David
D. George has a greater stroke volume and similar cardiac output to David.
Answer: B
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