A rectangular table, like the rectangle shown below, has a border of same-sized square tiles. The rectangle has 10 tiles along the length and 6 tiles along the width for a total of 28 total tiles. Notice that 10 + 10 + 6 + 6 ≠ 28. If the rectangular table has l tiles along the length and w tiles along the width, which of the following expressions represents the total number of tiles in the border? I. II. III. IV. A. II and IV only B. I only C. III only D. III and IV only