The new computer has a surface area of 168 square inches. if the the width is 5.5 inches less that the length, what are the dimensions of the computer?

A) Length: 14.5 inches, Width: 9 inches

B) Length: 14 inches, Width: 8.5 inches

C) Length: 15.5 inches, Width: 10 inches

D) Length: 13 inches, Width: 7.5 inches

E) Length: 13.5 inches, Width: 8 inches