Well it’s not the prokaryotes because that’s bacteria and archaea. Eukaryotes is your best bet because the two do fall under that category.
When it comes to the multicellular or unicellular protists are MAINLY unicellular while plante, animalia and fungi only are all multicellular so if they were in the same circle that’s probably while they are separated in the first place.
I would pic eukaryotes!
Hope this helps!
