In which way can an assignment problem be defined: a. a special case of transportation problem. b. a problem where all variables are either 0 or 1. c. a problem where all right-hand side values are equal to 1. d. All of the above. 2- In using the criterion of realism (Hurwicz criterion), the coefficient of realism(a): a. Is the probability of a good state of nature. b. Describes the degree of optimism of the decision maker. c. Describe the degree of pessimism of the decision maker. d. Is usually less than 1
