Given the task definition and input, reply with output. In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.

Question: The objective of using the economic evaluation in the decision making process regarding drug financing is:
Options: <1> Decrease spending on medicines. <2> Be more efficient <3> Be more effective <4> Use the safest drugs. <5> Use the drugs with the best benefit-risk balance.
2