Answer:
b. All else equal, a project's NPV increases as the cost of capital declines.
Step-by-step explanation:
Net present value method: In this method, cash inflows from the discounted present value are subtracted from the initial investment. If the sum comes in positive than the project would be accepted otherwise not be beneficial to the company and therefore, the project should be rejected
In the given case, the initial cash flow is negative and the other cash annual flows are positive so if the cost of capital declines, the projected net present value increases and if the cost of capital is increases, the projected net present decreases being the other things are equal