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'.

[Q]: Question: A 75-year-old man who reported decreased visual acuity in his right eye of two weeks of evolution. In the fundus examination, soft drusen and serous detachment at the level of the macula are seen. What treatment is currently the most indicated for this disease? 
 Options:  <1> Focal photocoagulation with laser. <2> Photodynamic therapy. <3> Intravitreal injections of anti-angiogenic drugs. <4> Posterior vitrectomy. <5> Observation.
[A]: 3


[Q]: Question: What is interpersonal therapy of social rhythm (or interpersonal and social rhythm therapy)? 
 Options:  <1> An adaptation of interpersonal therapy to the treatment of dysthymic disorder. <2> An adaptation of interpersonal therapy to the treatment of severe major depressive disorder. <3> A therapy resulting from combining interpersonal therapy, behavioral activation therapy and social problem solving therapy. <4> An adaptation of interpersonal therapy for patients with major depressive disorder who have serious problems in their social relationships. <5> An adaptation of interpersonal therapy to the treatment of bipolar disorder.
[A]: 5


[Q]: Question: Clark's electrode is based on: 
 Options:  <1> Potentiometric. <2> Potentiostatic <3> Optical. <4> Amperometric. <5> Conductimetric
[A]:
4