4) When a firm evaluates a new investment; there are some important points to consider such as taking into account the sunk costs, positive or negative synergy effects of the investment, opportunity costs, salvage value and the impact of investment of NOWC. Explain each of them by giving an appropriate example for each and also clearly mentioning the possible impact of these factors on the estimated free cashflow. Weights: 1) 30 2) 25 3)25 4)20