This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Uveal tract, Subject name: Ophthalmology
Which of the following indicates activity of anst uveitis - 
Select and explain. 
A. Cells in anterior chamber, B. Circumcorneal congestion, C. Keratic precipitate, D. Corneal edema
A: Cells in anterior chamber
Answer: A: Cells in anterior chamber 
Explanation: Activity of acute anterior uveitis is indicated by presence of cells (aquous cells) and flare in anterior chamber -Grading is done on these two. Ref: Khurana 7th/e p.158 & 4th/e p.143.