Definition: In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.
Input: Question: The deficit of which of the following enzymes is NOT a cause of porphyria ?: 
 Options:  <1> Protoporphyrinogen oxidase. <2> Delta-amino levulinic synthetase. <3> Coproporphyrinogen III oxidase <4> Uroporphyrinogen decarboxylase. <5> Uroporphyrinogen III cosintetase.
