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: Which of the following molecules has a simple covalent bond? 
 Options:  <1> C2. <2> N 2 <3> O 2 <4> O 3. <5> F 2
5

Question: What is the name of the specialty of the History of Nursing that is dedicated to the study of existing care systems in Prehistory? 
 Options:  <1> Paleodermia. <2> Neo-nursing <3> Primo Nursing. <4> Ethno-nursing <5> Meso-nursing
1

Question: Transcription factors: 
 Options:  <1> They bind to chromatin by interaction with histone H2A. <2> They bind to RNA and regulate the start of transcription. <3> They join the DNA. <4> They are organized into nucleosomes. <5> They regulate DNA mutilation.

3