A controllable risk factor for the disease is sleep habits. The correct option is D.
What is disease?
A disease is a disorder or abnormal condition that causes discomfort and improper functioning of the body. The disease can be caused by any microorganism or improper routines.
Age, poverty, and climate can not be controlled by humans, but sleeping at proper timing can be controlled by humans, and disease can be controlled by sleep.
Thus, option D, sleep habits, are correct.
Learn more about the disease, here:
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