The answer is letter c. determining how to use your time in a 24-hour period. A good step in learning how to manage time is to determine how to use your time in a 24-hour period, for example in the morning you like to do activities such as exercise and roam around the park, while in the afternoon, you want to take a nap. Some activities you do vary in time, some activities you do don't repeat itself in the same day, except the essential ones. So, it is best if you learn how to manage time and activities for better time management.