Task: Text Categorization
Input (English): Question: The development of B cells in the bone marrow: 
 Options:  <0> It is dependent on the antigen. <1> It begins with gene rearrangements in the kappa light chain. <2> It is dependent on stromal cells. <3> It begins with gene rearrangements in the delta heavy chain. <4> It is dependent on T lymphocytes.
Output (English): biology