Instructions: 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'.
Input: Question: When formulating tablets with active ingredients that are used at relatively low doses, it is necessary to add excipients whose primary function is to obtain a tablet of a reasonable size. What are these excipients called?
Options: <1> Adsorbents <2> Binders <3> Disintegrators <4> Thinners <5> Lubricants
Output:
4