Given the task definition and input, reply with output. In this task, you are given a question and answer options for that question. Using this information, you have to classify each text into different topics: medicine, nursery, psychology, chemistry, pharmacology, biology.

Question: The results of the evaluation of a prevention program carried out in a specific context, environment and population refer to the concept of: 
 Options:  <0> Effectiveness. <1> Efficiency. <2> Effectiveness. <3> Feasibility. <4> Sustainability

nursery