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: Medicine
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: None