Answer:
b. sleeping
Step-by-step explanation:
Sleeping is a natural bodily process that helps us rest and rejuvenate. It is a state of relaxation where our body and mind can recover from the day's stresses. When we sleep, our body is restful, and our mind is not actively engaged in external stimuli or demands. As a result, sleeping does not typically generate stress. It is a necessary and beneficial activity for our overall well-being.