Fill in the Lettered Blanks in the Following Table

Fill in the lettered blanks in the following table: $\begin{array}{lrrr}&\text { Investment }A&\text { Investment }B&\text { Investment }C\\\text { Amount of investment } & \$ 40,000 & (\mathrm{~A}) & \$ 20,000 \\\text { Economic life in years } & 10 & 5 & 8 \\\text { Annual cash flow } & \$ 5,000 & \text { (B) } & \$ 2,500\\\text { Payback period in years } & (\mathrm{C}) & 4 & \text { (D) } \\\text { Present value of cash flows } & (\mathrm{E}) & \$ 33,000 & (\mathrm{~F}) \\\text { Net present value } & \$ 5,500 & \$ 3,000 & (\$ 1,000)\end{array}$