If a prokaryote didn’t have peptidoglycan and was classified…

If a prokaryote didn’t have peptidoglycan and was classified as a thermoacidophile, which of these would be false A) It is not a bacterium.B) Its optimal pH would be well below pH 7.C) It could inhabit hydrothermal springs.D) It could inhabit alkaline hot springs.E) It could inhabit very hot springs.