This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Epilepsy and EEG, Subject name: Medicine
Epilepsy is defined as: 
Select and explain. 
A. One or more unprovoked seizures, B. Two or more unprovoked seizures, C. Three or more unprovoked seizures, D. Four or more unprovoked seizures
B: Two or more unprovoked seizures
Answer: B: Two or more unprovoked seizures 
Explanation: Epilepsy is a condition where the patient has 2 or more episodes of unprovoked seizures.