This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Communicable diseases, Subject name: Social & Preventive Medicine
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: <p> Five or more follicles in the upper tarsal conjunctiva . Reference:National Health Programs of India by Dr.J.Kishore,7th edition,pg no:368. <\p>