Final answer:
In Dubin-Johnson disease, hepatic jaundice occurs due to decreased bilirubin excretion, resulting from a genetic defect in the liver's ability to transfer conjugated bilirubin into the bile.
Step-by-step explanation:
In Dubin-Johnson disease, the condition that causes hepatic jaundice due to bilirubin transport disturbances is c) Decreased bilirubin excretion. Dubin-Johnson syndrome is a rare genetic liver disorder characterized by an impairment of the liver's ability to transfer conjugated bilirubin into the bile. As a result, despite normal liver enzyme activities, conjugated bilirubin accumulates in the liver and subsequently in the bloodstream, leading to jaundice. This accumulation is not due to a defect in bilirubin conjugation or uptake, nor is it the result of enhanced bilirubin metabolism. Instead, it involves a defect in the excretion of conjugated bilirubin into the biliary system.