Choose the correct statement among the following :-
(I) Spirulina as single cell protein can serve as rich protein food
(II) Pomato, new hybrid plant formed by somatic hybridisation is the most successful hybrid for commercial utilisation.
(III) We can use even sewage to produce large quantities of spirulina.
(IV) Iron fortified rice variety has been developed which contains over 5 times as much iron in common varieties.

The correct option is D All of these are correct
Spirulina is a single cell protein which serve as a food. It can be grown easily on materials like waste water from potato processing plants and even sewage.
Pomato is the potato and Tomato hybrid plant. It can be formed by somatic hybridization.
Biofortification is the process by which the nutritional quality of food crops is improved through conventional plant breeding. In biofortification, iron fortified rice variety containing over 5 times as much iron as in commonly consumed varieties.

Thus, all the given statements are correct.