Answer:
To find the ratio of boxes of pens ordered to boxes of pencils ordered, we need to divide the number of boxes of pens by the number of boxes of pencils:
24 boxes of pens ÷ 15 boxes of pencils = 8/5
Therefore, the ratio of boxes of pens ordered to boxes of pencils ordered is 8:5.
The correct answer is (C) 8:5.