A candy company plans to hang posters of a new product in supermarkets. The product is a box of premium chocolates. The art team made a scale drawing of the top of the box using a scale of 3 inches to 1 inch. The length of the scale drawing of the box is 24 inches, and its width is 15 inches. What are the actual dimensions of the top of the chocolate box?
A. The length is 8 inches and the width is 5 inches
B. The length is 12 inches and the width is 7.5 inches
C. The length is 16 inches and the width is 10
D. The length is 22 inches and the width is 12 inches