I think the correct answer would be C. It would be restricting water and/or nutrients, instead of supplying ample quantities of both that would not change the results of the experiment. This is because you are still supplying the same amount of nutrients and other things needed by the plant so the ratio of the growth of the plants will still be the same.
I think atleast one is Oxygen because it needs air to digest
The answer that best completes the statement is PHOSPHORS. When we say phosphors, these includes the three primary colors that are shown in electronic displays. Phosphors is a synthetic fluorescent substance typically seen in luminescence as this emits light whenever it is exposed to radiation.
These are abiotic components of an ecosystem that are non living.