D because trachea is the tube, bronchi is what splits into your lungs, bronchioles are what look like branches of the bronchi, and alveoli are the little air bags at the bottom of the smallest bronchioles.
They are totally high in fiber, protein, and minerals. Hope i helped!!
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Abstinence is a great way to avoid the risks that come with sex — like pregnancy and STDs — until you're ready to prevent and/or handle them. Abstinence can also help you focus on things that are most important to you, like friends, school, sports, activities, having fun, and planning for your future.