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
Frequency of tuning fork commonly used for performing Rinne's test is: 
Select and explain. 
A. 256 Hz, B. 512 Hz, C. 1024 Hz, D. 2048 Hz
B: 512 Hz
Answer: B: 512 Hz 
Explanation: Tuning fork tests are performed with tuning forks of different frequencies such as 128, 256, 512, 1024, 2048 & 4096 Hz, but for routine clinical practice, tuning fork of 512 Hz is ideal.