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: Unknown
Inclusion bodies of trachoma are stained with? 
Select and explain. 
A. Wright’s stain, B. Iodine, C. Saffranin, D. Alcian blue
B: Iodine
Answer: B: Iodine 
Explanation: Stained with dilute Lugol’s iodine solution, some of the inclusions of C trachomatis appear brown because of the glycogen matrix that surrounds the particles. Inclusions of C psittaci are diffuse intracytoplasmic aggregates.