The Child-Pugh scoring system is used to assess the prognosis of chronic liver disease, particularly cirrhosis. It includes the following components:
Albumin: Measures the protein level in the blood.
Bilirubin: Indicates liver function based on the bilirubin levels.
Prothrombin Time: Reflects clotting ability, which is crucial for assessing liver function.
Ascites: Not mentioned here, but it is part of the scoring.
The Liver Function Test (LFT) is not a direct component of the Child-Pugh score, though liver function is indirectly assessed through bilirubin, albumin, and prothrombin time.
Thus, the correct answer is:
\[
\boxed{D} \, \text{LFT}
\]