<prompt> Excessive intake hypervitaminosis of which of the following vitamin is associated with increased risk of congenital malformations -Vitamin-ABiotinFolic acidVitamin-K  <response>: Ans. is a i.e., Vitamin A o It is absolutely contraindicated in pregnancy, as it is highly teratogenic; upto 25 exposed foetuses had bih defects-craniofacial, hea, and CNS abnormalities. 