The diagram below is a lever system. The purple box is the load; the red circle is a hinge joint. The dotted and dashed lines are artificial muscles, or actuators. The solid lines are skeletal elements, labeled #1 and #2. The muscles shown are _____; the dotted line is the _____ and dashed line is the _____. 
A) antagonists; extensor; flexor
B) protagonists; flexor; extensor
C) antagonists; flexor; extensor
D) protagonists; extensor; flexor
Correct Answer:
Verified
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