input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Which of the following clinical features of demyelinating myelopathy least likely suggests a progression to multiple sclerosis?   (A) Complete cord transection   (B) Bilateral visual loss   (C) Absence of oligoclonal bands   (D) Poor prognosis
output: ['(C) Absence of oligoclonal bands <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Complete cord transection  (B) Bilateral visual loss  (C) Absence of oligoclonal bands  (D) Poor prognosis <> possible answers', '  Which of the following clinical features of demyelinating myelopathy least likely suggests a progression to multiple sclerosis? <> context']