
Passage: In her book Oh My God: A Brief History of Profanity, Dr. Melissa Moore of Stanford University describes an interesting phenomenon: some patients with Alzheimer's disease or stroke are able to repeatedly swear even after they have lost the ability to speak. This is confusing: isn't swearing just talking?
Question: If true, which of the following best explains the above phenomenon?
A. A.Although only a dozen of the roughly one million words in the English language are profanity, they are used very frequently.
B. B.Brain scientists have demonstrated that the human mind can change the state of the body in a physiological sense.
C. C.Swearing is the most extreme emotional word, reducing stress and helping to endure pain.
D. D.Ordinary words are stored in the upper regions of the brain, which control autonomous behavior and rational thinking, while swear words are stored in the lower regions of the brain, which are responsible for emotions and instinctive reactions.
Answer: