For the following cash flow series, which of the statement is correct? Year 0 1 2 Cashflow $200 $200 $200 a) the NPV is $561.60 at a discount rate of 6%. b0 the NPV is $556.65 at a discount rate of 8%. c) the IRR is 9.81%. d) the payback is 2 years. e) none of the above.