15. Consider the multiplicative congruential generator under the following circumstances: (a) Xo = 7, a = - 11, m = 16 11, m = 16 (b) Xo = 8, a = (c) Xo = 7, a = (d) Xo = 8, a = 7, m = 16 7, m = 16 Generate enough values in each case to complete a cycle. What inferences can be drå maximum period achieved?