Which of the following interest rate is equivalent to the effective interest rate of 2% per half year? (There may be more than one correct answer. You will lose marks by choosing a wrong answer. The minimum mark for the question is zero.) Select one or more: a. j2 = 4% b. 12 = 2% c. )1 = 4.04% j1 d. i 2% -4-2 eji = 4%