Lol maybe another time, I am going to do schoolwork in a second
I'm pretty sure it is "c"
Answer:
Mixtures can be separated using a variety of techniques. Chromatography involves solvent separation on a solid medium. ... Evaporation removes a liquid from a solution to leave a solid material. Filtration separates solids of different sizes.
The answer to that is James Watson and Francis Crick although if you search up on a search engine who found it Francis Crick will only show up.