Increasing order of complexity of body organisation in the kingdom given by R.H. Whittaker is as follows-
C. Monera-Prokaryotes with cell wall made up of polysaccharide.
↓E. Protista - Unicellular eukaryotes.
↓A. Fungi -Multicellular heterotrophic with cell wall made up of chitin.
↓D. Plantae - Eukaryotes autotrophs with tissue body organisation.
↓B. Animalia - Heterotrophs with tissue organ/system of body organisation
Correct sequence is C, E, A, D, B.