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
Scleritis is associated with some systemic disease including connective tissue disorder in: 
Select and explain. 
A. 35% of cases, B. 50% of cases, C. 66% of cases, D. 85% of cases
B: 50% of cases
Answer: B: 50% of cases 
Explanation: Ans. 50% of cases