The area of a square is given by the formula $A=c^2$. What will be the total area of 5 such similar squares, if the side of the square is $7\;cm$

Question

$\begin{array}{1 1} 49\;cm^2 \\ 245\;cm^2 \\ 249\;cm^2 \\ 7\;cm^2 \end{array} $