Compute the realized return on Stock Z, and compare the realized return to the expected return. E(r) = 20%. Realized income on Stock Z for the holding period was $10. Pricepaid was $500; Price Received was $580. Was the investment a good decision? O a.-12% HPR Since the expected return was less than the actual return, this turned out to be a poor investment decision O b. 18% HPR. Since the realized return was less than the expected return, this turned out to be a poor investment decision. O c.-12% HPR. Since the realized return was less than the expected return, this turned out to be a poor investment decision. O d. 18% HPR. Since the expected return was less than the realized return, this was a good investment decision