Which of the following represents a major difference between prokaryotic cells and eukaryotic cells?

A) Prokaryotes are a more homogenous group of organisms than eukaryotes, which include protozoa, plants, and animals.
B) Eukaryotic cells tend to have much more extensive inner membrane systems and larger numbers of intracellular organelles than prokaryotes.
C) Prokaryotes, not eukaryotes, have cell walls.
D) Prokaryotes are unable to carry out aerobic respiration, a process that requires a complex inner- membrane system.