This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.N.S, Subject name: Medicine
MIDAS question are is used in assessment of 
Select and explain. 
A. Severity of weakness in stroke, B. Disability in migraine, C. Memory in alzheimers disease, D. Tremors in parkinsons disease
B: Disability in migraine
Answer: B: Disability in migraine 
Explanation: Once a diagnosis of migraine has been established, it is impoant to assess the extent of a patient's disease and disability. The Migraine Disability Assessment Score (MIDAS) is a well-validated, easy-to-use tool . Migraine Disability Assessment Score Five questions related to headache severity are used in assessment Grade I--Minimal or Infrequent Disability: 0-5 Grade II--Mild or Infrequent Disability : 6-10 Grade III--Moderate Disability : 11-20 Grade IV--Severe Disability : > 20 Ref Harrison 20th edition page 3098, 3100(table 422-4)