# Pure water can be obtained from sea water by

$\begin{array}{1 1}(a)\;\text{Centrifugation}\\(b)\;\text{Plasmolysis}\\(c)\;\text{Reverse osmosis}\\(d)\;\text{Sedimentation}\end{array}$

Pure water can be obtained from sea water by reverse osmosis.
Hence (c) is the correct answer.