Task: Question Answering
Input (English): Question: Which of the following laboratory tests is of choice in the diagnosis of autoimmune hemolytic anemias due to hot antibodies ?: 
 Options:  <1> Ham's test <2> Test of Coombs. <3> Autohemolysis test with glucose. <4> Osmotic resistance test. <5> Electrophoresis of membrane proteins.
Output (English): 2