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
A 62-year-old diabetic patient presented with a history of progressive right-sided weakness of one-month duration. The patient was also having speech difficulty. Fundus examination showed papilledema. Two months ago, she also had a fall in her bathroom and struck her head against a wall. The most likely clinical diagnosis is - 
Select and explain. 
A. Alzheimer's disease, B. Left parietal glioma, C. Left MCA territory stroke, D. Left chronic subdural haematoma
D: Left chronic subdural haematoma
Answer: D: Left chronic subdural haematoma 
Explanation: None