Answer one question for each part:

Part $1$: ROA conclusion, overall;

the firm is more efficient in earning a profit on each dollar of assets than the industry average, and is improving.

the firm is more efficient in earning a profit on each dollar of assets than the industry average, but is declining

the firm is less efficient in earning a profit on each dollar of assets than the industry average, but is improving.

the firm is less efficient in earning a profit on each dollar of assets than the industry average, and is declining.

Part $2$:

ROA conclusion, performance relative to industry:

Return on Assets is superior to the industry average performance due to the superior Return on Sales.

Return on Assets is superior to the industry average performance due to the superior Sales$/$Assets$.$

Return on Assets is inferior to the industry average performance due to the inferior Return on Sales.

Return on Assets is inferior to the industry average performance due to the inferior Sales$/$Assets$.$

Part $3$:

ROA conclusion, performance trend:

Return on Assets improvement is due to the improvement in Return on Sales.

Return on Assets improvement is due to the improvement in Sales$/$Assets$.$

Return on Assets improvement is due to the improvement in Return on Sales and Sales$/$Assets$.$

Return on Assets fell due to the decline in Return on Sales.

Return on Assets fell due to the decline in Sales$/$Assets$.$

Return on Assets fell due to the decline in Return on Sales and Sales$/$Assets$.$

Part $4$:

ROA conclusion, comparison to Cost of Capital

Return on Assets is satisfactory $($greater than the firm's cost of capital$)$

Return on Assets is not satisfactory $($less than the firm's cost of capital$)$