As noted in Section 12.4.1, Chance-type Decide modules use random-number stream 10 for their hypercoin f ips, and there’s no way to change that in the module. Describe (in words) how you could work around this to use whatever stream you want to accomplish the same thing. Also, build a useless little Arena model (but one that runs) that does the same thing as a Decide module f ipping a four-sided hypercoin with probabilities 0.2, 0.5, 0.1, and 0.2 for outbound routes A, B, C, and D, respectively, except using random-number stream 77. Verify that your model produces decisions with probabilities that are about right.