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: Microbiology
Thymus has 
Select and explain. 
A. Interstitial dendritic cells, B. Interdigitating dendritic Cells, C. Circulating dendritic cells, D. Follicular dendritic cells
B: Interdigitating dendritic Cells
Answer: B: Interdigitating dendritic Cells 
Explanation: Interstitial dendritic cells - Lungs, liver, spleen
Interdigitating dendritic cells - Thymus
Circulating dendritic cells - Blood & lymph
Follicular dendritic cells - Lymph nodes.