If the net present value of a project that costs $$20,000$ is $$5,000$ when the discount rate is $10\%,$ then the:

A$.$ project's IRR equals $10\%.$

B$.$ project's IRR is higher than $10\%.$

C$.$ net present value of the cash inflows is $$4,500.$

D$.$ project's cash inflows total $$25,000.$