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'.

[EX Q]: Question: If you want to estimate the effects of an intervention, you will use: 
 Options:  <1> A transversal design. <2> A retrospective design <3> An ecological study. <4> A randomized clinical trial. <5> An observational design with random selection of the participants.
[EX A]: 4

[EX Q]: Question: What disorders are we referring to when we speak of an alteration of the integrating functions of consciousness, identity, and memory ?: 
 Options:  <1> Schizophrenia. <2> Dissociative disorders <3> Somatoform disorders. <4> Post-traumatic stress disorders. <5> Mood disorders
[EX A]: 2

[EX Q]: Question: An 80-year-old man with a history of hypertension, ischemic heart disease and COPD, who underwent a complete rectocolonoscopy due to rectal bleeding, with the following findings: polypoid lesion 3 cm in diameter located 10 cm from the anal margin, occupying the half of the circumference. Rest of exploration without findings until blind. In the polyp biopsy, an adenocarcinoma limited to the submucosa is seen. Endorectal ultrasound: uT1N0. Pelvic MRI: T1N0. TC: No evidence of disease at a distance. What will be the most likely therapeutic decision to be made in the Multidisciplinary Tumor Commission? 
 Options:  <1> Abdominal-perineal rectum amputation. <2> Neoadjuvant radiotherapy and low anterior resection of the rectum by laparoscopy. <3> Transanal endoscopic microsurgery. <4> Anterior low resection of laparotomic rectus. <5> Anterior low resection of laparoscopic rectal route and adjuvant radiotherapy.
[EX A]:
3