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: Anatomy
Biondi Ring Tangles (BRTs) are found in - 
Select and explain. 
A. Choroidal plexus cells, B. Golgi type II cells, C. Basket cells, D. Pia mater
A: Choroidal plexus cells
Answer: A: Choroidal plexus cells 
Explanation: BRT are intracellular inclusion bodies found in choroidal epithelial cells of choroid plexus. It consists of a lipid droplet surrounded by a ring shaped bundle of filaments.