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: Radiology
Anencephaly can be diagnosed by USG at – 
Select and explain. 
A. 10–12 weeks of gestation, B. 14–18 weeks of gestation, C. 20–24 weeks of gestation, D. 24–28 weeks of gestation
A: 10–12 weeks of gestation
Answer: A: 10–12 weeks of gestation 
Explanation: Anencephaly can be detected as early as 10-11 weeks of pregnancy.