Choose the option having the combination of correct statements:
I. Thread-like green structures floating in rivers are Kingdom Plantae organisms.
II. The green moist velvety textured structures on the rocks and trees are organisms in Kingdom Plantae.
III. Lichens are members of Kingdom Plantae.
IV. All organisms in Kingdom Plantae have shoots, roots and leaves.

The correct option is D Only I and II
Organisms in Kingdom Plantae are mostly multicellular, chlorophyll bearing organisms that synthesize their own food. The thread-like green, moist velvet textured structures on the rocks and even pine trees are members of Kingdom Plantae.
Not all members of Kingdom Plantae have true roots, shoots and leaves. Exa,ples are algae and mosses. They lack true rootsystem and shoot system.

Lichens are structures formed from the symbiotic association of algae/cyanobacteria and fungi living mutually. So, they are not included in any kingdoms.