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 29-year-old woman with a history of abundant rules and long-standing iron-deficiency anemia who have required treatment with ferrotherapy since she was 17 years old. Consult because after a tooth extraction you have hemorrhage that has required local hemostatic treatment. He relates that a maternal aunt presents frequent epistaxis. In analytical presents: 8000 leukocytes / uL, Hb 10.7 g / dL, VCM 76 fL, 380,000 platelets / uL; the biochemistry is normal. Prothrombin activity 90%; INR 0.9; Activated Partial Thromboplastin Time (APTT) 48 sec (39 sec) with an APTT ratio of 1.3 and fibrinogen derivative 340 mg / dL. What is the most likely diagnostic suspicion and how would it confirm it? 
 Options:  <1> Hemophilia A and mixtures test. <2> Lupus anticoagulant and ANAS study. <3> Sideroblastic anemia and spinal aspiration. <4> Congenital thrombocytopathy and study of platelet aggregation. <5> Von Willebrand disease and determination of factor vW.
[A]: 5


[Q]: Question: Question linked to image n ° 16 Patient of 84 years who presents an ulcerated tumor lesion that shows in the scalp of more than 20 years of evolution. No palpable locoregional adenopathies. Obviously the lesion must be biopsied for diagnostic confirmation but, a priori, which of the following diagnoses seems most likely? 
 Options:  <1> Merkel cell tumor. <2> Basal cell carcinoma. <3> Squamous carcinoma <4> Amelanotic malignant melanoma. <5> Cutaneous B-cell lymphoma
[A]: 2


[Q]: Question: Which of the following molecules has a simple covalent bond? 
 Options:  <1> C2. <2> N 2 <3> O 2 <4> O 3. <5> F 2
[A]:
5