Which of the following is/are true about the metrics derived from ROC curves?

1. The range of the AUC score is between 0 and 1.

2. The smaller the AUC score of the ROC curve the better the model.

3. An AUC score of 0.5 means that the model is performing quite well.

4. Gini Coefficient is another measure calculated from the ROC curve that tells us how good a model is.

a. (1), (2) & (3)

b. (1) & (4)

c. (2) & (3)

d. (2), (3) & (4)