Consider the following steps in building a credit risk classifier:

A$)$ Identify the classes $($groups$,$ categories, etc.$)$: Here is low$-$risk $($C$0)$ and high$-$risk $($C$1).$

B$)$ Identify what features represent people$$s financial risk: e$.$g$.,$ savings and income.

C$)$ Train a classifier that separates people from the two classes.

D$)$ Use the trained classifier on new people$$s data to score their credit as low or high risk.

What is the correct order of these steps for building a credit risk classifier? Please select the option that arranges these steps in the correct order for creating a credit risk classifier.