【单选题】In 1575—over 400 years ago the French scholar Louis Le Roy published a learned book in which he voiced despair over the changes caused by the social and technological innovations of his time, what we ...
A.
An overpopulated earth will be unable to sustain its inhabitants.
B.
The rich will become richer and the poor will become poorer.
C.
New sources of energy will be substituted for oil and natural gas.
D.
The effects of pollution will pose a dreadful threat to mankind.