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: Pathology
Parents are carrier of an autosomal recessive disorder. Chances of offspring to get affected? 
Select and explain. 
A. 1:01, B. 1:02, C. 1:03, D. 1:04
D: 1:04
Answer: D: 1:04 
Explanation: Ans. is 'd' i.e., 1:4 o If both parents are carrier, there are 25% chance (1 in 4) that the child will be affected.