Answer:
The correct option is: A. to account for two major and distinct prokaryotic groups in addition to eukaryotes
Explanation:
The three-domain system is a classification given by the American microbiologist and biophysicist, Carl Richard Woese.
This system of classification recognizes and divides the prokaryotes into two groups: Eubacteria and Archaebacteria.
It also classifies the cellular life forms into three domains: Archaea, Bacteria, and Eukarya.
