The surface area of a triangular prism can be calculated by finding the area of each of the individual shapes on the net and adding them together.
First, the surface area of the two parallelograms can be calculated as 2 x (4 cm x 12 cm) = 96 cm².
Next, the surface area of the two triangles can be calculated as 2 x (1/2 x 9 cm x 12 cm) = 108 cm².
Adding all the areas together:
96 cm² (parallelograms) + 108 cm² (triangles) = 204 cm².
Therefore, the correct answer is not listed in the provided options.