Which classification system was proposed by $R.H. Whittaker$?

Which of the following statements is correct?

What was the major contribution of the scientists George Bentham and Joseph Dalton Hooker $(1817-1911)$?

The main criteria used for Five Kingdom Classification proposed by $R.H. Whittaker$ $(1969)$ included:
$(A)$ Cell structure
$(B)$ Body organization
$(C)$ Presence of flagellum
$(D)$ Reproduction
$(E)$ Phylogenetic relationships
Choose the correct answer from the options given below:

Which one single organism or the pair of organisms is correctly assigned to its taxonomic group?

Select the correct pair from the following.