estion 6 t yet swered arked out of 0 Flag question Curtis bought an 8.5% annual coupon bond at par. One year later after receiving coupon payment, he sold the bond at 98% of par. During the year, market interest rates rose and inflation was 3%. What real rate of return did Curtis earn on this investment? Select one: O a. 3.4% O b. 3.5% O c. 6.4% O d. 6.5% O e. 7.5%