A.rain
B.entertain
C.main
D.mountain

A. Thinking is a social phenomenon.
B. Thinking is solely a brain function.
C. Thinking is a function of the nervous system.
D. Thinking is the sum total of bodily activity

A. The humorous story was created abroad.
B. The humorous story is basically American.
C. The humorous story is also loved in other countries.
D. The humorous story is the least popular in the U. S. A.