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: Pharmacology
Lithium is used in a pregnant woman. Which of the following congenital anomaly occurs in foetus - 
Select and explain. 
A. Tetralogy of Fallot's, B. Tricuspid atresia, C. Ebstein anomaly, D. Pulmonary stenosis
C: Ebstein anomaly
Answer: C: Ebstein anomaly 
Explanation: Ans. is 'c' i.e., Ebstein's Anomalyo Intake of lithium causes Ebstein's anomaly in fetus.