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 the fetus? 
Select and explain. 
A. Tetralogy of Fallot, B. Bicuspid atresia, C. Ebstein's anomaly, D. Pulmonary stenosis
C: Ebstein's anomaly
Answer: C: Ebstein's anomaly 
Explanation: None