Consider the following statements :
I. Pine oil is used as antifoaming agent in the emulsion paints.
II. Protective colloids are used in the emulsion paints to decrease their stability.
III. Driers having oxidizable oils are added to the emulsion paints to accelerate drying process.
Which of the statements given above is/are correct?

Statement I is correct: Pine oil is commonly used as an antifoaming agent (defoamer) in emulsion paints to prevent the formation of air bubbles during the manufacturing and application processes.

Statement II is incorrect: Protective colloids (such as casein, gelatin, or synthetic polymers) are added to emulsion paints to increase their stability. They prevent the dispersed particles from coalescing or settling, thereby maintaining a uniform mixture.

Statement III is correct: Driers (often metallic salts like cobalt or manganese naphthenates) are added to paints containing oxidizable oils (drying oils) to catalyze the oxidation and polymerization process. This significantly accelerates the drying and hardening of the paint film once applied.

Therefore, statements I and III are correct, making option D the right choice.