The diagram illustrates an experiment used to show the movement of molecules. After one hour, the water in the beaker had become red. What is the most likely explanation for this colour change?
- AMolecules of red ink move through the membrane by diffusion.
- BMolecules of red ink move through the membrane by osmosis.
- CMolecules of water move through the membrane by diffusion.
- DMolecules of water move through the membrane by osmosis.