Definition: 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: The epithelium of the epidermis is:
Options: <1> Stratified keratinized plane. <2> Stratified non-keratinized plane. <3> Simple keratinized cylindrical. <4> Keratinized stratified cylindrical. <5> Cubic stratified.
Output:
1