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
Hordeoluminternum isasuppurativeinflammation of the: 
Select and explain. 
A. Gland of Zeis, B. Gland of Moll, C. Meibomian gland, D. All of the above
C: Meibomian gland
Answer: C: Meibomian gland 
Explanation: Ans. Meibomian gland