Multi-choice problem: Continue writing the next sentence in this paragraph:

How to treat narcolepsy naturally
Get regular exercise.
Exercise can help boost your energy levels and help you avoid stress that leads to drowsiness. Getting regular, moderate exercise, especially in the afternoon, can also help you get a better night's sleep.

Choices: (A). Talk to your doctor or fitness specialist about your exercise and ensure that it's safe for you. Make sure that you avoid any activities where you might strain your lungs or physically hurt yourself. (B). If you want to get a cool night's sleep, go for it. It will give you a burst of energy and enable you to think better about the day ahead. (C). The exercise you choose will depend on your age, your gender, and the mood of your loved one. On average, it's recommended to get at least 30 minutes of moderate exercise three days a week. (D). A daily 30 to 45 minute workout with moderate intensity exercises such as brisk walking, jogging, and swimming, or 15 minutes of high-intensity exercises such as soccer, basketball, and strength training is recommended. Talk to your doctor or fitness instructor to help you come up with a fitness plan that can help manage your narcolepsy.
(D).