The answer is C. Aromatase
The solution of nutrients and organelles is called CYTOPLASM.
The cytoplasm of a cell is made up of all the organelles that are located outside of the nucleus which are enclosed within the cell membrane of a cell. The cytoplasm is a colorless, clear, jelly like substance whose constituent is majorly water [80%]. It also contains enzymes, salts, organelles and various organic molecules.
The nitrogenous bases in DNA are adenine, guanine, thymine, and cytosine.
The nitrogenous bases in RNA are adenine, guanine, uracil, and cytosine.
So the base in RNA that is different than in DNA is uracil.
Hope this helps.