UKMT Junior Mathematical Challenge, 2015

The diagram shows a pyramid made up of 30 cubes, each measuring $1\text{m} \times 1\text{m} \times 1\text{m}$. What is the total surface area of the whole pyramid (including its base)?

(A) $30\text{ m}^2$ (B) $62\text{ m}^2$ (C) $72\text{ m}^2$ (D) $152\text{ m}^2$ (E) $180\text{ m}^2$