Which of the following statements is false?

$($A$)$ Negative cash flow from operations can either signal poor operating performance or investment in working

capital.

Positive cash flow from operations is generally good news.

Cash flow from investing activities is usually negative.

$($D$)$ A useful way to check whether a company is increasing or decreasing its investment base is to compare its

capital expenditures in the investing section to the depreciation add$-$back in the operating sections.

When the sum of operating and financing cash flows is negative, we should investigate how the cash

shortfall is financed.