Shyam’s uncle has set up an electroplating factory near his village. He should dispose off the waste of the factory

Question

$\begin{array}{1 1} \text{(a) in the nearby river} \\ \text{(b) in the nearby pond.} \\ \text{ (c) in the nearby cornfield} \\ \text{(d) according to the disposal guidelines of the local authority} \end{array} $