Which of the following statements is (are) TRUE? 
Definitions:
Discount Rate
The discount rate is the interest rate used to calculate the present value of future cash flows in discounted cash flow analysis, reflecting the risk and opportunity cost of capital.
Pretax Return
The income an investor or business earns before any taxes are deducted.
Net Present Value
A financial measurement that calculates the value of a project or investment by discounting the expected future cash flows to their present value using a specific discount rate.
Tractor-Trailer
A vehicle configuration consisting of a front tractor unit coupled to a trailer carrying cargo.
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