Given the task definition and input, reply with output. 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'.

Question: Question linked to image n15 The following diagnostic test that is most appropriate to perform in this patient is:
Options: <1> Angiofluoresceingraphy. <2> Visual evoked potentials. <3> Vitreous sampling using vitrectomy. <4> Nuclear magnetic resonance. <5> Computerized field.
1