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: If you want to study the efficacy and safety of a new cytostatic for a specific oncological process and, at the same time, contrast the efficacy that adds a new monoclonal antibody to this treatment, what would be the most appropriate study design?
Options: <0> Parallel test. <1> Cross test <2> Factorial test. <3> Sequential test. <4> Test of n = 1.
medicine