<span>You should use deep, relaxing breathing techniques A. every day. It doesn't matter if you are stressed or if you've gotten enough sleep, you should breathe deep breaths every day in order to relax and collect your thoughts. It will help you through your day, and there is no limit of how much you can do this - it is certainly not harmful. </span>
FOR EXAMPLE:
Let's say you've been taking melatonin every single night to help you sleep. After a while, you may notice that it begins to take more and more melatonin for it to work like it did the first night you took it. You were taking one per night, but you end up taking 3 per night to get the same effect because your body has resistant to the drug.
ANSWER:
After a while of taking antibiotics, microorganisms in your body may become resistant to the antibiotics (which is potentially dangerous). This occurs when bacteria change to reduce the effects of a drug.
The answer is D. All of the Above.