A positive Babinski reflex is observed when the:
A) toes curve or move downward when the sole of the foot is touched.
B) patient responds to pain by flexing the arms and extending the legs.
C) patient's reflexes are hyperactive in response to an external stimulus.
D) toes move upward in response to stimulation of the sole of the foot.
Answer: D) toes move upward in response to stimulation of the sole of the foot.
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