A forensic scientist finds a strand of hair at a crime scene. The forensic scientist would like to identify the person to whom the hair belongs. Place the steps that the forensic scientist has to take into the correct order from top to bottom.

DNA extraction - PCR to amplyfy the DNA - Analysis of the DNA - Comparison of the DNA with known sources.
DNA extraction - Analysis of the DNA - PCR to amplyfy the DNA - DNA - Comparison of the DNA with known sources.
Analysis of the DNA - DNA extraction - DNA extraction - Comparison of the DNA with known sources.
Comparison of the DNA with known sources - DNA extraction - Analysis of the DNA - PCR to amplify the DNA