Valerie Is a 55-Year-Old Female Who Received an Electrocardiogram (ECG)as

Valerie is a 55-year-old female who received an electrocardiogram (ECG) as part of a routine medical examination.She had the ECG performed both at rest and after running on a treadmill for 5 minutes.How would the ECG graphs differ between these two measurements?

A) The peaks on the resting ECG graph would be closer together than the peaks on the exercise ECG graph because her heart rate is higher at rest.
B) The peaks on the exercise ECG graph would be closer together than the peaks on the resting ECG graph because her heart rate is higher during exercise.
C) The peaks on the resting ECG graph would be closer together than the peaks on the exercise ECG graph because her stroke volume is higher at rest.
D) The peaks on the resting ECG graph would be closer together than the peaks on the exercise ECG graph because her stroke volume is higher during exercise.