The word "gizmos" (Line 1, Para. 2) most probably means ______.

A．expected to copy human brain in internal structure
B．able to perceive abnormalities immediately
C．far less able than human brain in focusing on relevant information
D．best used in a controlled environment

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