Answer:
C. 468mm^2
Explanation:
Using the formula for finding the surface area of cuboids [ S = 2(lw + lh + wh) ]
we have found the answer 468mm^2.
(Sorry for taking so long for a short explanation!
l = length , w = width , h = height . Just do the calculation with the algebra I have set out for you)
[Hey, if the answer is wrong in this question, feel free to message me!]