This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ear, Subject name: ENT
Mechanical advantage provided by lever action of malleus 
Select and explain. 
A. 2:01, B. 1.3 : 1, C. 1.8 : 1, D. 1:01
B: 1.3 : 1
Answer: B: 1.3 : 1 
Explanation: The handle of the malleus is 1.3 times longer than the long process of the incus, providing a mechanical advantage of 1.3. (Ref: Diseases of EAR, NOSE and THROAT by PL Dhingra 6th edition; page no.14)