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: Forensic Medicine
Infeility can be defined as: UP 11; KCET 13 
Select and explain. 
A. Not conceiving after 3 years of marriage, B. Not conceiving after 2 years of unprotected intercourse, C. Not conceiving after 1 year of unprotected intercourse, D. Not conceiving after 1 year of marriage
C: Not conceiving after 1 year of unprotected intercourse
Answer: C: Not conceiving after 1 year of unprotected intercourse 
Explanation: Ans. Not conceiving after 1 year of unprotected intercourse