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
An absent kidney is found in - 
Select and explain. 
A. 1:200 individuals, B. 1:700 individuals, C. 1:1400 individuals, D. 1:5000 individuals
C: 1:1400 individuals
Answer: C: 1:1400 individuals 
Explanation: Ans. is 'c' i.e., 1:1400 individuals Smith's Urology, 17/e, p 510 writes that the incidence of agenesis of one kidney is 1 in 450-1000 bihs.