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
Which of the following indicates activity of ant 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: Ans. Cells in anterior chamber