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: ENT
UPSIT is used for testing: 
Select and explain. 
A. Olfaction, B. Hearing, C. Vision, D. None of the above
A: Olfaction
Answer: A: Olfaction 
Explanation: The University of Pennsylvania Smell Identification Test (UPSIT): A far superior test to other assessments is the University of Pennsylvania Smell Identification Test (UPSIT). It is highly recommended for the evaluation of a patient with smell disorder. This test utilizes 40 forced-choice items that feature microencapsulated scratch-and-sniff odors.