Final answer:
Individuals with symptoms such as paralysis or blindness without a physical cause likely have a conversion disorder, which has psychological rather than neurological origins.
Step-by-step explanation:
Individuals who have reported paralysis of a limb, blindness, or seizures with no physical or neurological damage are most likely suffering from a conversion disorder.
This type of disorder is characterized by neurological symptoms that cannot be traced to a physical cause.
Unlike neurological disorders such as epilepsy or spinal cord injuries that have identifiable physical causes and symptoms, conversion disorder presents with symptoms that are psychological in origin.
Therefore, the correct answer to the question is (A) A conversion disorder.