Right option is (b) In 2 kingdom classification, all the fungi and algae are forcefully made to join Animalia
The explanation is: Whittaker’s classification managed to consider cell structure, nature of the cell wall, mode of nutrition and method of reproduction. In 2 kingdom classification, all the fungi and algae are forcefully made to join Plantae. Whittaker’s classification is polyphyletic and so failed to group similar organism under the same kingdom. Whittaker’s classification didn’t include viruses.