This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Oedema of Lids, Subject name: Ophthalmology
Stye is suppurative inflammation of glands of - 
Select and explain. 
A. Zeis, B. Meibonian, C. Wolfring, D. All the above
A: Zeis
Answer: A: Zeis 
Explanation: Ans. is 'a' i.e., Zeis Differences between stye (Hordeolum externum), chalazion and Hordeolum internum Stye (Hordeolum externum)ChalazionHordeolum internumOnsetAcuteChronicAcuteGlandZeis's glandMeibomian glandMeibomian glandTypes of inflammationSuppurativeLipogranulomatousSuppurativeSymptomsAcute pain and swellingPainless disfigurementSevere painSignsLocalized, hard and tender swelling near the lid marginHard nontender swelling away from lid marginYellow point seen on everting the lidTreatmentHot fomentation, Antibiotics and removal of eye lasho Drainage by incision and curettageo Intralesional steroido Diathermy, antibiotico Incision and drainageo Antibiotics and analgesic