5. Which of the following statements is FALSE? a. The "best" logistic model shows adequate discriminatory power based on the AUCs. b. The testing AUC may be bigger or smaller than the training AUC for the same model. c. In an ideal case, the testing AUC should always be smaller than the training AUC for the same model. d. If one has another random split of the data, the AUCs may change, and one may reach a different recommendation