【单选题】It weighs less than three pounds and is hardly more interesting to look at than an overly ripe cauliflower. ___________________________________________. It has created poetry and music, planned and ex...
A.
The human brain is made of gelatinous matter and contains no nerve endings.
B.
The science of neurology has found a way to map the most important areas of the human brain.
C.
Nevertheless, the human brain is the most mysterious and complex object on Earth.
D.
However, scientists say that each person uses only 10% of his or her brain over the course of a lifetime!