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: Social & Preventive Medicine
Commonest cause of stroke in our country- 
Select and explain. 
A. Thrombosis, B. Embolism, C. Haemorrhage, D. Infarction
A: Thrombosis
Answer: A: Thrombosis 
Explanation: “Cerebral thrombosis is usually the most frequent form of stroke encountered in clinical studies, followed by haemorrhage”.