Answer:
The correct answer is A.
Explanation:
For a young, healthy person, weighing 70kg, resting cardiac output is approximately 5 liters per minute (assuming a heart rate of 70 bpm)
70ml stroke volume x 70 beats per minute = 5 liters/min
Stroke volume is the amount of blood ejected by the left ventricle with each contraction (normal value 70ml)
