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: Pathology
Wahin's tumor is ? 
Select and explain. 
A. Multifocal and bilateral, B. Multifocal and unilateral, C. Unifocal and bilateral, D. Unifocal and unilateral
A: Multifocal and bilateral
Answer: A: Multifocal and bilateral 
Explanation: Ans. is 'a' i.e., Multifocal and bilateral