The word "gizmos" (line 1, paragraph 2) most probably means ______.

A．the use of machines to produce science fiction
B．the wide use of machines in manufacturing industry
C．the invention of tools for difficult and dangerous work
D．the elite's cunning tackling of dangerous and boring work

A．make a few decisions for themselves
B．deal with some errors with human intervention
C．improve factory environments
D．cultivate human creativity