Two liquids X and Y are separated by a semipermeable membrane and if liquid flows from X to Y,it indicates that

$\begin{array}{1 1}(a)\;\text{Both solutions X & Y have the same concentration}\\(b)\;\text{X is more concentrated than Y}\\(c)\;\text{X is less concentrated than Y}\\(d)\;\text{None of the above}\end{array}$

Solvent molecules flows from low concentration side to high concentration side through the semi permeable membrane.
Hence (c) is the correct answer.