PLEASE HELP Which of the following FOUR items are considered necessary factors for natural selection and/or evolution?

A Competition for limited resources

B Genetic drift of a small population

C Geological events such as volcanoes, earthquakes, or asteroid strikes

D The proliferation of organisms better able to survive (surviving organisms reproduce)

E Mass extinction events like the extinction of the dinosaurs

F The potential for a species to increase in number

G Genes can be passed on from generation to generation Plasmid transfer from one bacterium to another​