There are three kinds of risk sources when we talk about the risk of an investment project. The first one is (IV) stand-alone risks that a project exhibits when evaluated alone rather than as part of a combination or portfolio of assets. The second one is (III) within-firm risks that a project has on the total overall riskiness of the company. The third one is (II) market risks that a project has and assessed from the standpoint of a stockholder who has a portfolio of assets. The correct answer is E.