<prompt> A most common cause of Neonatal Hypothyroidism isThroid dysgenesisTransplacental maternal thyroid antibodiesInherited genetic disordersDecreased thyroglubin  <response>: Iodine deficiency is the commonest cause of congenital hypothyroidism in certain parts of India, while thyroid dysgenesis is the most common aetiology in non-endemic areas 75 of all cases. 