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: Ophthalmology
Krukenberg's spindle seen in patients with pigmentary glaucoma refers to deposition of pigment on: 
Select and explain. 
A. Trabecular meshwork (gonioscopic sign), B. Back of cornea, C. Anterior surface of the lens, D. All of the above
B: Back of cornea
Answer: B: Back of cornea 
Explanation: Ans. Back of cornea