The correct answer would be, 85% to 100%.
During a physical activity of high intensity, your heart will beat at a percentage of its maximum rate. 85% to 100% range shows the correct percentages during this type of activity.
Explanation:
When a person performs a high intensity activity like circuit training, rope jumping, jumping jacks, sprinters, etc, then such exercises increase the heart rate to its maximum.
During such exercises or activities, the heart rate beats to its fullest. So the percentage between 85 to 100 percent shows the correct percentage during such activities.
Learn more about heart beat percentage at:
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