Net cash flows (thousand TL) of an investment project are given in the table below. The discount rate (cost of capital) reflecting the level of risk for these investment options is 10%. 1. Which investment project should be undertaken according to the "Payback Period" Method, which is one of the project valuation methods. 2. Which investment project should be undertaken according to the "Discounted Payback Period" Method, which is one of the project valuation methods. 3. Which investment project should be undertaken according to the "Net Present Value" method, which is one of the project valuation methods. Windov Windows