The class of medications that lower blood pressure by relaxing blood vessels and decreasing blood volume is called Angiotensin-converting enzyme inhibitors or ACE inhibitors. So the correct option is D.
ACE inhibitors are a class of medications used for lowering blood pressure. They result in the relaxing of blood vessels and decreasing blood volumes which also prevents excess pressure on the kidneys.
These medications are used in case of high blood pressure and several other cardiovascular diseases. Examples are high blood pressure, failure of the heart, kidney issues related to diabetes, etc.
Therefore, the correct option is D.
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