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
Renal TB mode of infection 
Select and explain. 
A. Direct from bowel, B. Ascending, C. Hematogenous, D. Lymphatic
C: Hematogenous
Answer: C: Hematogenous 
Explanation: Answer- C. HematogenousGenitourinary tuberculosis is always secondary to pulmonary infection, though in many cases, the primary focus has healed or is quiescent.Infection occurs the hematogenous route