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
All of the following are coverings of a mature graffian follicle, except ? 
Select and explain. 
A. Theca externa, B. Theca interna, C. Germinal cells, D. Granulosa cells
C: Germinal cells
Answer: C: Germinal cells 
Explanation: Coverings of the mature or graffian follicle are (From inner to outer) * Innermost layer is the the granulosa cells* The theca interna* The theca externa