Instructions: 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: When you assess a patient with a neurological problem, you check that he has a positive Kerning sign. This finding is related to:
Options: <1> Meningeal irritation <2> Convulsive crisis. <3> Alteration of the I Cranial Pair. <4> Diplopia. <5> Cerebral stroke.
Output:
1