This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Disorders of Conjunctiva, Subject name: Ophthalmology
Which of the following strain does not cause hyperendemic trachoma 
Select and explain. 
A. A, B. B, C. C, D. D
D: D
Answer: D: D 
Explanation: Trachoma Strains * A, B, Ba, C: Hyperendemic trachoma * D, K : Inclusion trachoma Predisposing factors * Usually contracted during early age group * Females have more serious disease * More common in lower socioeconomic status * Outdoor workers are more involved