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'.

Q: 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:  <1> Parallel test. <2> Cross test <3> Factorial test. <4> Sequential test. <5> Test of n = 1.

A: 3
****
Q: Question: African trypanosomes (T. Rhodesiense and T. Gambiense) are transmitted by insects of the genus: 
 Options:  <1> Glossina <2> Triatoma. <3> Panstrongylus. <4> Rhodnius. <5> Phlebotomus.

A: 1
****
Q: Question: One of the following types of transport through membranes does NOT exist: 
 Options:  <1> Ion transport facilitated by ionophore (against electrochemical gradient). <2> Facilitated diffusion (in favor of electrochemical gradient) <3> Primary active transport (against electrochemical gradient). <4> Ionic channel (in favor of electrochemical gradient). <5> Simple diffusion (in favor of concentration gradient).

A:
1
****