Arun, Deepa, Uma and Priya were asked to select a plant material which would not give blue black colour with iodine solution. Who did not select the right material ?

Question

$\begin{array}{1 1} \text{(a) Arun selected maize grains. } \\ \text{ (b) Deepa selected wheat grains.} \\ \text{ (c) Uma selected ground nut seeds.} \\ \text{ (d) Priya selected potato. } \end{array} $