Which is NOT true of non-traumatic subarachnoid haemorrhage?

• A. Most common in the 40-60 year age group.
• B. 70% are due to AV malformations.
• C. Female: male = 2:1
• D. Smoking increases your risk 3-10 fold.
• E. 50% of patients die or are permanently disabled from the initial event.