Leslie is starting to plateau in her cardiovascular endurance workout program due to boredom. She decides to include biking and rollerblading along with her treadmill activity to kickstart her program. These new activities demonstrate the training principles of: A Overload and Reversibility
B Specificity and Tedium
C Progression and Tedium
D Overload and Progression

D Overload and Progression

Explanation:

If we are talking about overload it is good for her because she wants to improve her workout program. In this case, with overload, she will increase the demands placed upon her body. In that case, also, she will do more than normal.

Along with the overload, it comes progression. She must continue with workouts in order to continue to challenge her body to work harder.

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the answer is false, i know this answer is late but its for anyone else that needs it.