Consider the following statements about osmotic pressure method of molar mass determination.
l. Molarity of the solution is used instead of molality.
Il. Magnitude of osmotic pressure is very large even for dilute solutions.
III. Molar mass of bio molecules can be determined as they are not stable at higher temperatures.
IV. Determine the molar mass of polymer as they have poor solubility.
Which of the above statements are responsible for advantage of osmotic pressure for determination of molar mass over the other colligative properties?