c
\(\begin{array}{l}
\,\,\,\,\,\,\,\,Here,\,{K_p} > {K_Q}\\
Case\,\left( a \right)\,:\,Elongation\,\left( x \right)\,in\,each\,spring\\
is\,same.\\
{W_p} = \frac{1}{2}{K_p}{x^2},\,{W_Q} = \frac{1}{2}{K_Q}{x^2}\therefore {W_p} > {W_Q}\\
Case\,\left( b \right)\,:\,Force\,of\,elongation\,is\,same.
\end{array}\)

\(\begin{array}{l}
So,\,{x_1} = \frac{F}{{{K_p}}}and\,{x_2} = \frac{F}{{{K_Q}}}\\
{W_p} = \frac{1}{2}{K_p}x_1^2 = \frac{1}{2}\,\frac{{{F^2}}}{{{K_p}}}\\
{W_Q} = \frac{1}{2}\,{K_Q}x_2^2 = \frac{1}{2}\,\frac{{{F^2}}}{{{K_Q}}}\,\,\,\,\,\,\therefore \,{W_p} < {W_Q}
\end{array}\)