Task: Question Answering
Input (English): Question: Of the following statements, one is NOT a trigger for abdominopsychoneurological crises in acute porphyria. Indicate which: 
 Options:  <1> The luteal phase of the menstrual cycle. <2> The enzymatic hepatic inducer drugs. <3> The infections <4> A restrictive diet in proteins. <5> The protease inhibitors used in HIV infection.
Output (English): 4