The prices of breakfast cereals in three different box sizes are shown in the table. Based on the information in the table, which statement is true?
Table:
Small. Medium Large
10 oz. 15 oz. 20 oz.
$2.50. $3.00. $4.50.
A: The small box has the highest cost per ounce.
B: The medium box has the highest cost per ounce.
C: The small and large boxes have the same cost per ounce.
D: The medium and large boxes have the same cost per ounce.