$\begin{array}{1 1} \text{(1) Maximum work is required to move q in
figure (c).} \\ \text{(2)
In all the four cases the work done is the same.} \\ \text{
(3) Minimum work is required to move q in
figure (a).} \\ \text{(4)
Maximum work is required lo move q ir
figure (b). } \end{array} $
