When did these events occur in the history of life on earth? select the choice that puts the events in the correct order from past to present.
a. prokaryotes evolve, oxygen in atmosphere, single cell eukaryotes evolve, multicellular eukaryotes evolve
b. single cell eukaryotes, dinosaur extinction, land plants, oxygen in atmosphere
c. oxygen in atmosphere, multicellular prokaryotes, land plants, dinosaur extinction
d. prokaryotes evolve, land plants, modern humans evolve, dinosaur extinction
e. single cell eukaryotes, oxygen in atmosphere, cambrian explosion, modern humans evolve