Task: Question Answering
Input (English): Question: In comparison with the primary humoral responses, the secondary ones: 
 Options:  <1> They are based primarily on IgM. <2> They are faster and more durable. <3> They generate antibodies of low affinity for the antigen. <4> They present a low level of hypermutation. <5> They generate much lower amount of antibodies.
Output (English): 2