Read the following statement and choose the correct option.
A. The first heart sound (lub) is associated with the closure of both semilunar valves.
The duration between the adjacent second heart sound and first heart sound is 0.3 seconds
C. The cardiac output is the stroke volume multiplied by the number of heartbeats per minute.
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The first heart sound (lub) is associated with the closure of both semilunar valves.
The duration between the adjacent second heart sound and first heart sound is 0.3 seconds
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