The correct option is B Protista
This kingdom forms a link with the others dealing with plants, animals and fungi. Being eukaryotes, the protistan cell body contains a well-defined nucleus and other membrane-bound, and non-cellulosic cell wall in different organisms, most of them are photosynthetic. It includes Chrysophytes, Dinoflagellates, Euglenoids, Slime moulds and Protozoans.
Kingdom Monera includes autotrophic and heterotropic organisms with cell wall. Kingdom Animalia includes heterotrophic organisms without the cell wall. While kingdom Fungi includes heterotrophic organisms with cell wall.
So, the correct answer is "Protista"