Answer is (C) bacteria or monera; archaebacteria and eubacteria.
The five kingdom system of classification is divided into animal, plant, fungi, protist, and monera. Monera consists of the single-celled organisms bacteria. The monera kingdom is currently divided into two kingdoms, archaebacteria and eubacteria. This happened after the findings of the extremophiles that live in the extreme conditions of high pressure, hot temperatures, saline and acidic waters. They have a totally different morphology in comparison to the eubacteria.