34. A liquid-liquid solution is called an ideal solution if I. it obeys PV=nRT.; II. it obeys Raoult's law. III. solute-solute, solvent-solvent, and solute-solvent interactions are very similar. IV. solute-solute, solvent-solvent, and solute-solvent interactions are quite different. (A) I, II, III ; (B) I, II, IV ; (C) I, II ; (D) I, IV ; (E) II, III.