This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diseases of orbit, Lids and lacrimal apparatus, Subject name: Ophthalmology
[{'content': 'Stye is an acute suppurative inflammation of \nSelect and explain. \nA. Gland of Moll, B. Meibomian gland, C. Gland of Zeis, D. All of the above', 'role': 'user'}, {'content': 'Answer: C \nExplanation: EXTERNAL HORDEOLUM (STYE) It is an acute suppurative inflammation of gland of the Zeis. Etiology: Causative organism commonly involved is Staphylococcus aureus. Signs : 1)\x01 Stage of cellulitis is characterised by localised, hard, red, tender swelling at the lid margin associated with marked oedema 2)\x01 Stage of abscess formation is characterised by a visible pus point on the lid margin in relation to the affected cilia. Usually there is one stye, but occasionally, these may be multiple. Ref:- A K KHURANA; pg num:-345', 'role': 'assistant'}]