Just before debuting at carnegie hall, a pianist suffered abrupt paralysis of her entire left hand. she has no known medical conditions that are associated with this symptom. this description most closely aligns with:

conversion disorder.

Explanation:

Conversion disorder -

It is the medical condition , in which the the person suffers from paralysis or blindness or any other nervous system , which becomes very difficult to evaluate medically , is known as conversion disorder .

This type of disorder can occur due to psychological issues .

The symptom of  conversion disorder is unexpected stressful condition .

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your answer would b. the missisipi river

hope i you : )