1.You buy 100 shares of NAS stock and get an average execution price of $7.18/share but must pay 9$ for the trade and $0.03 per share traded.You then sell all the shares exactly eight months later for an average execution price of $9.03/share but once again face $9 for the trade and $0.03 per share traded.Your annualized rate of return on this trade is closest to:

A)10.11%

B)21.69%

C)22.42%

D)34.25%

E)35.45%

can someone explain to me why the answer is d)?

I know this is basic stuff but I keep getting an annualized rate of return of 36.90%, thus E as an answer...