This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Testis and scrotum, Subject name: Surgery
All of the following are the risk factors for testicular tumors except: 
Select and explain. 
A. Testicular feminization syndrome, B. Klinefelter's syndrome, C. Administration of DES in utero, D. Acute Epididymo- Orchitis (EDO)
D: Acute Epididymo- Orchitis (EDO)
Answer: D: Acute Epididymo- Orchitis (EDO) 
Explanation: Risk factors for testicular tumors- Cryptorchidism- Testicular feminization syndrome (androgen insensitivity syndrome)- Klinefelter's syndrome- H/O testicular tumor in siblings- Personal H/O TT- increases risk of contralateral testicular tumor- In-utero exposure of DES (Diethyl stilbestrol)