Write the next sentence in the following story.

How to diversify your workout
Work on your legs early in the week.
Some of your largest muscles are in your legs, and so they need longer to recover than other muscles. Work on your legs early in the week to allow them ample time to recover.

OPTIONS: [I] Then, work your legs for 30 minutes at a time until you are able to tire your legs out. The longer you exercise, the harder it will be to truly lose weight.; [II] People who walk daily should start their workouts at around 8 am or 5 pm, or before 7 pm. Add cardio exercises to your workouts.; [III] Squats are one of the best ways to work on your legs. Perform a simple squat by standing with your legs shoulder-width apart.; [IV] For example, instead of working your legs in the morning, work on them all afternoon long. Change your cholesterol intake to a lower cholesterol moderate on your home diet.;. The answer should be
[III]