<prompt> A newborn presented with jaundice. Most diagnostic investigation of choice is:Total and Direct bilirubinConjugated bilirubinSerum, bilirubinUroporphyrin levels  <response>: a. Total and Direct bilirubinRef: Nelsons 20e p 871-879, Ghai 8e p 172-176Measurement of total direct bilirubin will help to classify jaundice into its respective type and aid in diagnosis. 