bora purchased 600 shares of abc company at a price of 77.40$ a share and a sold the shares for 80.20$ each. he also received 720$ in dividends. f the inflation rate was 3.9 percent. what was his exact real rate of return on this investment?

a.1.22

b2.21

c.3.45

d.2.97

e.1.97 percent