Two solutions A and B are separated by a semipermeable membrane. If the solvent flows from A to B, then which of the following statement is true?

A is more concentrated than B. Both A and B have the same concentration. A is less concentrated than B. Both A and B get diluted.

A is less concentrated than B.

Osmosis is the spontaneous flow of the solvent molecules from a less concentrated solution (A) to a more concentrated solution (B) through a semi-permeable membrane.