Task: Text Categorization
Input (English): Question: Regarding the molding technique, which of the following characteristics is TRUE? 
 Options:  <0> A structured environment is required. <1> It can be carried out forward and backward. <2> It implies the successive application of reinforcement and extinction. <3> The successive approximations are necessarily part of the final behavior. <4> The goal behavior can be simple or complex.
Output (English): psychology