[Solved] Viruses that consist of only a nucleocapsid are considered A)simple viruses. B)complex viruses. C)naked viruses. D)viroids. E)incomplete viruses. Average Accounting Rate of Return: A financial ratio indicating the average annual profit earned through an investment, compared to the initial investment cost. Crossover Rate: The discount rate at which two investment projects have the same Net Present Value (NPV), often used in capital budgeting. Projects: Specific tasks or initiatives undertaken to achieve a particular goal, often requiring a significant amount of planning and work. IRR Cross-Over Rate: The rate at which two projects have the same net present value (NPV) when considering their internal rate of return (IRR), used to choose between competing projects.