Helena is an engineer that designs packaging for new products. She designed a box in the shape of a rectangular prism with dimensions of 10 inches by 7 inches by 4 inches. What is the surface area of the box?
a.138 square inches
b.276 square inches
c.280 square inches
d.441 square inches
a.138 square inches
b.276 square inches
c.280 square inches
d.441 square inches