Quinine(Cinchonaspp.) is native to the mountainous regions of South America.
Explanation:
Cinchona bark contains quinine, which is a medicine used to treat malaria. It also contains quinidine which is a medicine used to treat heart palpitations (arrhythmias).Cinchona officinalis is a medicinal plant, one of several Cinchona species used for the production of quinine, which is an anti-fever agent. It is especially useful in the prevention and treatment of malaria. Other alkaloids that are extracted from this tree include cinchonine, cinchonidine and quinidine.
The answer is D because the pharmacist should memorize his information and not share with anyone. The impact of doing so could have potentially very adverse side effects.