Shyam buys 5 square paving slabs each of side 1 cm. Find the perimeter of the arrangement shown with 5 slabs.

Question

$\begin{array}{11} (a)\; \text{20 cm}\\ (b)\; \text{15 cm} \\ (c)\; \text{25 cm} \\ (d)\; \text{10 cm} \end{array}$