Answer:
D. The payback period is less than 2 years.
Explanation:
Discount rate         5% Â
                    0    1      2
intital investment     -10 Â
cash flow            0     30
Total cash flow     -10    0     30
NPV Â Â Â Â Â Â Â Â Â Â Â Â 17.21 Â
IRR Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 73% Â
Therefore, The NPV is 17.21 and is positive, the statement is True.
IRR > 50%, Therefore the statement made is True
Accounting rate of return = {[(30 - 10)/10]^(1/2)} - 1
                      = 41% > 0
Therefore, The statement made is true.
Payback period = 2 years, Therefore the statement made is NOT true.