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: Which of the following enzyme complexes catalyzes the reduction of molecular oxygen to water during oxidative phosphorylation? 
 Options:  <1> ATP synthase. <2> Cytochrome c oxidase. <3> NADH-Q oxide-reductase. <4> Q-cytochrome c-oxide-reductase. <5> Succinate-Q reductase.

A: 2
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Q: Question: Question linked to image nº7 A 31-year-old patient, with no previous history of interest, consulted due to muscle weakness of a few months of evolution that has progressively made it difficult for her to go up and down stairs. Physical examination is notable for the desquamative papuloerithematous lesions seen in the figure. To achieve the diagnosis, a muscle biopsy is performed, among other tests, which can be seen in the figure. What do you think is the most likely diagnosis? 
 Options:  <1> Vasculitis type panarteritis nodosa. <2> Systemic lupus erythematosus. <3> Dermatomyositis <4> Myositis with inclusion bodies. <5> Sarcoidosis

A: 3
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Q: Question: How is the pigmented and highly vascularized layer of the posterior wall of the eyeball called? 
 Options:  <1> Iris. <2> Choroid <3> Ciliary body. <4> Sclera <5> Retina.

A:
2
****