Question

what is cardiac output
the amount of blood that is pumped out of the heart each beat
stroke volume x tidal volume
stroke volume x heart rate
the amount of blood that the heart can

Explanation:

Cardiac output is defined as the product of stroke volume (the amount of blood pumped out of the heart per beat) and heart rate (number of heart - beats per minute). Tidal volume is related to respiration, not cardiac output calculation. The amount of blood pumped out of the heart each beat is stroke volume, not cardiac output.

Answer:

C. Stroke volume x heart rate