Given the task definition and input, reply with output. 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: The deoxyribonucleotides are synthesized:
Options: <1> From the ribonucleotide triphosphate. <2> From the ribonucleotides diphosphate. <3> From NADPH. <4> By oxidation of ribonucleotides. <5> For DNA polymerase III.
2