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
In the grading of trachoma, trachomatous inflammation-follicular is defined as the presence of: 
Select and explain. 
A. 5 or more follicles in the lower tarsal conjunctiva, B. 3 or more follicles in the lower tarsal conjunctiva, C. 5 or more follicles in the upper tarsal conjunctiva, D. 3 or more follicles in the upper tarsal conjunctiva
C: 5 or more follicles in the upper tarsal conjunctiva
Answer: C: 5 or more follicles in the upper tarsal conjunctiva 
Explanation: Ans. 5 or more follicles in the upper tarsal conjunctiva