Answer:
D). Lisa might experience symptoms of overtraining, like weight loss and increased irritability.
Step-by-step explanation:
The biggest concern after continuing the program for a few months would be that 'Lisa might experience the symptoms associated with overtraining including weight loss and enhanced irritability.' These are the initial symptoms which shows the strain that is being put on the muscles of the body. It may also cause her to face muscle pain, fatigue, a decline in appetite. Gradually, her body would adapt to the schedule and show the desired results. Thus, option D is the correct answer.