Which of these is likely to be a hard sign of neurological damage?

Name: Which of these is likely to be a hard sign of neurological damage?
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Abnormal reflex responses are a hard sign of neurological damage because they indicate dysfunction or damage to the spinal cord or nerves controlling the reflex. Headaches, poor attention, and difficulty sleeping may also indicate neurological issues, but they are considered soft signs and can also be caused by other factors.

Which of These Is Likely to Be a Hard Sign