Task: Question Answering
Input (English): Question: The Mantoux test (reaction to tuberculin) is: 
 Options:  <1> A delayed hypersensitivity reaction. <2> An immediate hypersensitivity reaction. <3> A hypersensitivity reaction by immunocomplexes. <4> A non-specific inflammation reaction. <5> A manifestation of autoimmunity.
Output (English): 1