Task: Question Answering
Input (English): Question: Question linked to image # 3 In relation to the suspected diagnosis you have established, what would be the most appropriate confirmation test? 
 Options:  <1> Determination of pulmonary capillary pressure, using a Swan-Ganz catheter. <2> Bronchoalveolar lavage. <3> Thoracic computed tomography (pulmonary arteries). <4> Determination of eosinophils in peripheral blood. <5> Determination of anti-HIV antibodies.
Output (English): 4