Bad Brad's BBQ Had Cash Flows for the Year as Follows

Bad Brad's BBQ had cash flows for the year as follows ($ in millions) : Bad Brad's would report net cash inflows (outflows) from investing activities in the amount of:
$$\begin{array} { | l | r | } \hline \mathbf { CASH FECENED ~FROM: } & \\\hline \text { Customers } & \$ 1,800 \\\hline \text { Interest on irwestments } & 200 \\\hline \text { Sale of land } & 100 \\\hline \text { Sale of common stock } & 600 \\\hline \text { Issuance of debt securities } & 2,000 \\\hline \mathbf { CASH PAID~ FOR } & \\\hline \text { Interest on debt } & \$ 300 \\\hline \text { Income tax } & 80 \\\hline \text { Debt principal reduction } & 1,500 \\\hline \text { Purchase of equipment } & 4,000 \\\hline \text { Purchase of inventory } & 1,000 \\\hline \text { Diwidends on common stock } & 200 \\\hline \text { Operating expenses } & 500 \\\hline\end{array}$$

A) ($4,000) .
B) $100.
C) ($3,900) .