We are working on a project to build a new product for our customers. The new product will cut into sales of existing products. When analyzing the NPV of the project, which of the following should we not consider because they represent sunk costs? (Check all that apply) Allocated overhead such as corporate management that will spend time on the project Previously conducted research and development work to get the project to this point New employees hired to work on the project Cannibalization of our existing produces The marginal tax rate of the corporation Space we provide new employees working on the project