Total surface area of a cuboid = 2(lb + bh + lh). Here lb=520, bh=56, and lh=455. So TSA = 2 × (520 + 56 + 455) = 2062 square cm. A cuboid has three pairs of equal rectangular faces: lb, bh, and lh. We add these three face areas and multiply by 2 to include the opposite faces. The answer is in square units, so the correct choice is 2062 cm².