Answer:
The answer is option B. "Use the machine to maintain or decrease her intensity".
Explanation:
The treadmill is a very effective method to work out with high impact. Using treadmill look to be much safer and protected but there are always be chances to misshapen. It's necessary to not to forget the dangers of this type of workout. When one loses their equalization. it can lead to the sprains, blackouts, broken bones and other accidents.
So, Tammy should use the machine to maintain or decrease her intensity in order to get the most effective workout.
Thus, the correct answer is option B. "Use the machine to maintain or decrease her intensity".