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
What is the initial management of congenital Lens antigen are ? 
Select and explain. 
A. Neoantigen, B. Sequestrated antigen, C. Altered antigen, D. Cross reacting
B: Sequestrated antigen
Answer: B: Sequestrated antigen 
Explanation: Answer- B. Sequestrated antigenCeain self antigens are present in the close system and never exposed to the immune system during fetal life.These are known as hidden antigen or sequestrated antigens. E.g. Sperm antigen, lens proteins being enclosed in capsule.