D. Try to choose the correct answer, note that four wrong answers will cancel one correct answer (i.e. each wrong answer will be penalized by -1 pt.): [ 4 pts. ] Which one of the following value is closest to the effective rate per semi-annual period, if the interest rate is given as 12% per year, compounded 2 times year? Select one: O a. 5.7000 b. 6.3000 c. 6.0000 0 d. 5. 1000