The physically inactive person should train around the intensity during the first weeks of training.

The correct answer is - 30 to 40 minutes.

Explanation:

A physical inactive person is a person who is not getting enough physical inactive as per recommended level. This type of person is needed to have extra intense physical exercise with aerobic exercise.

The American Heart Association recommends to the physically inactive person to train around 30 to 40 minutes of intense thrice or four times for the first weeks of training. It helps in developing cardiovascular health in an individual.

Thus, the correct answer is - 30 to 40 minutes.

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