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: Question linked to image no. 5 A 41-year-old man referred for presenting for more than 5 years bilateral alternating gluteal pain predominantly nocturnal, which interferes with sleep and relieves with mobilization. It is accompanied by stiffness for more than 1 hour after inactivity. Denies pain, swelling or deformity to another level. It provides elementary analytics without alterations except PCR 11.5 mg / dl (N <5) and the attached radiograph. The objective radiological alteration and the most probable diagnosis would be: 
 Options:  <1> Fracture of Looser- Osteomalacia. <2> Bilateral sacroiliitis - Ankylosing spondylitis. <3> Coexistence of lytic and blastic lesions Paget's disease. <4> Blastic lesions - Prostatic adenocarcinoma with bone metastases. <5> Osteosclerosis - Lymphoma.

A: 2
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Q: Question: Which of the following medications is an anti CD20 monoclonal antibody used in the treatment of rheumatoid arthritis? 
 Options:  <1> Alemtuzumab <2> Muromunab. <3> Abalizumab <4> Rituximab <5> Visilizumab.

A: 4
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Q: Question: Why does carbenicillin have a low antibacterial activity by mouth ?: 
 Options:  <1> It is degraded by beta-lactamases in the digestive system. <2> He undergoes first-pass hepatic oxidative metabolism. <3> It binds covalently to plasma proteins. <4> It is decarboxylated in the acid medium of the stomach giving rise to benzylpenicillin, which is also unstable in that medium. <5> It is highly lipophilic, which is why it is not released correctly from oral administration forms.

A:
4
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