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
Which of the following is false about tympanic membrane: 
Select and explain. 
A. Cone of light is antero-inferior, B. Shrapnell's membrane is also known as pars flaccida, C. Healed perforation has 3 layers, D. TM attachment to tip of malleus handle is called umbo
C: Healed perforation has 3 layers
Answer: C: Healed perforation has 3 layers 
Explanation: (c) Healed perforation has 3 layers(Ref. Scott Brown, 8th ed., Vol 2; 529)The TM membrane which heals by itself does not have the fibrous layer. It has 2 layers only, the outer epithelial and the inner endothelial.Rest are true