Which of the Following Statements Is true Regarding Profit Margin

Multiple Choice

Which of the following statements is true regarding profit margin?

A) Profit margin can be improved by decreasing the gross profit rate and/or controlling operating expenses and other costs.
B) Profit margin does not vary across industries.
C) Discount stores with high merchandise turnover generally have higher profit margins.
D) If the profit margin has a higher value, this suggests favorable return on each dollar of sales.