This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Psychiatric Illness, Subject name: Pharmacology
Floppy baby syndrome occurs due to fetal exposure to 
Select and explain. 
A. Warfarin, B. Valproate, C. Phenytoin, D. Lithium
D: Lithium
Answer: D: Lithium 
Explanation: Adverse effects of lithium Nephrogenic Diabetes Insipidus Hypothyroidism ECG Changes Reversible elevation of T waves Fine Tremor(MC) Nausea , Loose Stools Leucocytosis Teratogenecity: Fetal Li+ exposure is associated with Neonatal goiter, CNS depression, Hypotonia ("floppy baby" syndrome) Ebstein's anamoly