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
Chalazion is 
Select and explain. 
A. An acute suppurative staphylococcal infection of glands of zeis or moll, B. A chronic non-infective, non-suppurative lipo-granulomatous inflammation of meibomian gland, C. An acute primary staphylococcal infection of meibomian gland, D. A viral infection commonly affecting children
B: A chronic non-infective, non-suppurative lipo-granulomatous inflammation of meibomian gland
Answer: B: A chronic non-infective, non-suppurative lipo-granulomatous inflammation of meibomian gland 
Explanation: None