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
Urinary bladder calcification radiologicaly which resemble fetal head in pelvis is 
Select and explain. 
A. Adenocarcinoma of bladder, B. Bladder stone, C. Schistosomiasis, D. Marion’s disease
C: Schistosomiasis
Answer: C: Schistosomiasis 
Explanation: Schistosomiasis is associated bladder carcinoma ( SCC > TCC).