The 6-kingdom system of classification divides the former kingdom monera into two kingdoms, eubacteria and

a) probacteria.
b) chemobacteria.
c) archaebacteria.
d) methanobacteria.

i think it is a or c

C). Archeabacteria

The six kingdom classification was given by Carl Woese. He simply divided the kingdom Monera into two sub kingdoms named as Eubacteria and Archaebacteria. Archeabacteria is the kingdom of ancient prokaryotic organisms that used to live in the adverse environmental conditions. The Eubacteria is the kingdom of prokaryotic organisms that exhibit some adaptations that facilitates their survival in the adverse conditions.