Identify each of the following cash flow to indicate whether it is a benefit, a disbenefit, or a cost. (i) A project manager is constructing a large water dam but incurs a budget shortage. Hence he purchases less expensive turbines with a shorter maintenance cycle. The end result is less project cost, but higher operating cost. (ii) The project manager purchased less expensive turbines with a shorter maintenance cycle. (iii) Protect wetlands and introduce plant trees strategically is one way to prevent flash flood (iv) The replacement of brake pads that reaches the end of its useful life is part of a routine of maintaining a car. (v) Too much exposure to the UV light for skin treatment may well triggered the pigmentation of the skin.