which one of the following statements is correct concerning net present value or NPV? please explain why

a) if cash flow of a project at time 0 is increased ny $100, the NPV of the project will increase by $100

b)the timing of the cash inflows has no effect on NPV of projrct

c) if cash inflows of a project can be received sooner, NPV of project will increase

d) if project has negative NPV at 9% discount rate, it will also have a negative NPV at 8%