A drop of oil was dropped on the surface of the water. Choose the correct statement. A. The thickness

A drop of oil was dropped on the surface of the water. Choose the correct statement. A. The thickness of the oil film on the water surface can be as small as desired. B. The thickness of the oil film cannot be less than the size of the oil molecule. C. The diameter of the oil molecule can be 0.01 mm.

When a droplet of oil hits the surface of the water, it will spread in the form of a film over this surface. However, after the thickness of the film reaches the diameter of the size of the molecule, the film will cease to grow, since the forces of interaction between the molecules will not allow it to spread further. Therefore, the correct answer is: B) the thickness of the oil film cannot be less than the size of the oil molecule.