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: Surgery
All of the following abnormalities are predisposing causes for torsion of the testis except - 
Select and explain. 
A. Inversion of testis, B. Low investment of tunica vaginalis, C. Between 10 to 25 years of age, D. Separation of the epididymis
B: Low investment of tunica vaginalis
Answer: B: Low investment of tunica vaginalis 
Explanation: None