While Examining a Rock Surface, You Have Discovered an Interesting

Multiple Choice

While examining a rock surface, you have discovered an interesting new organism. Which of the following criteria will allow you to classify the organism as belonging to Bacteria, but not Archaea or Eukarya?

A) It is unicellular.
B) The organism does not have nucleus.
C) Its cell walls are made primarily of peptidoglycan.
D) It can survive at a temperature over 100°C.