The word "gizmos" (Line 1, Para. 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．how to have a sound sleep
B．what causes loss of sensations
C．what will happen if sensations were lost
D．how to lose sensations