Hahnemann believed cinchona bark was an effective treatment for malaria because it caused similar symptoms when taken by a healthy person. According to the fourth paragraph, what reason would a modern scientist likely give for using cinchona bark to treat malaria? 

A. Recent clinical studies show that traditional medicines can sometimes be as effective as modern medicines.
B. Clinical studies show cinchona bark is an effective treatment for malaria, but only in undiluted doses. 

C. Cinchona bark contains quinine, and quinine is known to be an effective treatment for malaria.
D. No modern scientist would recommend using cinchona bark to treat malaria.