Generate question bank domain model from JDL

src/main/java/com/example/questionbank/domain/enumeration/OptionKey.java

@@ -0,0 +1,11 @@
+package com.example.questionbank.domain.enumeration;
+
+/**
+ * The OptionKey enumeration.
+ */
+public enum OptionKey {
+    A,
+    B,
+    C,
+    D,
+}