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: The thromboxanes: 
 Options:  <1> They induce platelet aggregation. <2> They inhibit platelet aggregation. <3> They act as bronchodilators in the respiratory system. <4> They are produced in the membranes of all cells. <5> They are derived from saturated fatty acids.
[A]: 1


[Q]: Question: What is the maximum volume of air that a subject can breathe out after maximum inspiration ?: 
 Options:  <1> Total lung capacity. <2> Expiratory reserve volume. <3> Inspiratory capacity <4> Vital capacity <5> Residual volume
[A]: 4


[Q]: Question: A 71-year-old man presented with severe pancytopenia without any immature cells and with a medullar study suggestive of severe aplastic anemia. What would be the fundamental therapeutic approach? 
 Options:  <1> Treatment with methylprednisolone at a dose of 1 g / Kg / day for 5 days. <2> Study of siblings and if any is HLA compatible, allogeneic transplant of hemopoietic progenitors. <3> Immunosuppressive therapy with cyclosporine and antitimocitic immunoglobulin. <4> Hemotherapeutic support. <5> Chemotherapy and if autologous transplant response of hemopoietic progenitors.
[A]:
3