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
Investigation of choice to diagnose epilepsy is: 
Select and explain. 
A. MRI, B. EEG, C. CT scan, D. Angiogram
B: EEG
Answer: B: EEG 
Explanation: Ans: bRef: Harrison, 16thed, p. 2363- 2364