Final answer:
The reference information provided does not contain adequate data to determine the percentage of people with conversion disorder later found to have a diagnosable medical condition, hence no accurate final answer can be given.
Step-by-step explanation:
The percentage of people later found to have a diagnosable medical condition after initially being diagnosed with conversion disorder is not provided in the reference information given. Since the paragraphs provided do not contain a clear link between the statistics available and conversion disorder, the final answer cannot be accurately determined. Conversion disorder, also known as functional neurological symptom disorder, involves having neurological symptoms that can't be traced back to a medical cause.
Given that conversion disorder is defined by an absence of an identifiable medical condition, the question about what percentage of people are later found to have a medical condition is inherently complex. There's not enough data to make an informed decision on the multiple-choice question posed.