A. gradual and complete withdrawal from a drug under medical supervision
Explanation:
The question above is related to "drug addiction." In order to manage a drug addict and his withdrawal symptoms, it is important to "detoxify" him. <em>Gradual withdrawal</em> is important in order to prevent the person from experiencing<u> dangerous drug-withdrawal symptoms; so this is</u> done under medical supervision until such time that the person's body will be free from drugs. This is also the same with <em>alcohol addiction. </em>
This process may last to<em> many months</em> depending on the type of drug that the user used.
<span>Felicia just began running this past month, but since she continues to run the exact same route and exact same distance every day, she is growing board with her runs. This principle is known as D. reversibility</span>
