Which of the following statement/statements among a-e regarding microbes is/are false? a. all prokaryotes are generally considered microbes, but not all eukaryotes are considered microbes. b. archaea is a type of eukaryotic unicellular microorganism that can live in extreme conditions. c. the evolution of cyanobacteria resulted in the formation of oxygen and release of it into earth's atmosphere. d. the ancestors of modern-day bacteria date back to around 3.8 billion years ago. e. though changes were made later, the kingdom protista was originally formed to contain all microorganisms. f. all the above are true stataments.