Find i (the rate per period) and n (the number of periods) for the annuity. semiannual deposits of $400 are made for 10 years into an annuity that pays 7% compounded semiannually. ? A. i=0.0175 n = 40 0 B. i= 0.070; n = 10 C. OD. i-o035; n-20 0.350; n-10