Answer:
Option D) The company's depreciation and amortization expenses declined
Explanation:
When Aubey Aircraft´s depreciation and amortization decrease, it has less cost of sales and an improvement in the Gross Margin, hence, in the Net Income, but this enhancement in the Net Income has an opposite effect on Net Cash Flow because less depreciation and amortization means less Net Cash Flow,
Net Cash Flow it's defined by Net Income plus depreciation and amortization, a less Depreciation means less Net Cash Flow.
