This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
According to the Glasgow Coma Scale (GCS), a verbal score of 1 indicates: 
Select and explain. 
A. No response, B. Inappropriate words, C. Incomprehensible sounds, D. Disoriented response
A: No response
Answer: A: No response 
Explanation: On trying to rouse the patient by asking a simple question, no response is given a score of 1 under the GCS scale. Ref: Teasdale G, Jennett B. Assessment of Coma and Impaired Consciousness. Lancet 1974, Pages 81-84; Teasdale G, Jennett B. Assessment and Prognosis of Coma after Head Injury. Acta Neurochir 1976, Pages 34, 45-55