This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Kidney and ureter, Subject name: Surgery
Earliest and often the only presentation of TB kidney is: 
Select and explain. 
A. Increased frequency, B. Pain, C. Hematuria, D. Renal calculi
A: Increased frequency
Answer: A: Increased frequency 
Explanation: Clinical Features Earliest symptom is urinary frequency. Tuberculosis of genital tract should be considered in the presence of following situations Chronic cystitis that refuses to respond to adequate treatment Sterile pyuria, gross or microscopic hematuria. Non- tender enlarged epididymis with beaded or thickened vas. Chronic draining scrotal sinus. Induration or nodulation of prostate and thickening of one or both seminal vesicle.