In Appraising a Firm's Profit Performance

In appraising a firm's profit performance:

A) Return on sales is a better indicator than return on invested capital.
B) Return on invested capital is a better indicator than return on sales.
C) Net margin is a better indicator than operating margin.
D) Narrow measures of profit (such as after-tax net income) are better indicators than broad-based measures (such as EBITDA-earnings before interest,tax,depreciation and amortization) .