单项选择题

Many Ph. D. s are out of job because ______.
A) their degree is too high C)they are poor in communication
B) they are of little industrial value to society D) there are too many people unemployed

A.Many Ph. D. s are out of job because ______.
B.their degree is too high
C.they are poor in communication
D.they are of little industrial value to society D) there are too many people unemployed