* A is correct because in the Explore phase, the Business Roles are updated when conducting an upgrade of an SAP S/4HANA Cloud, public edition three system landscape. The Business Roles are the roles that define the access rights and authorizations for the users in the system. The Business Roles are updated to reflect the changes and enhancements that are introduced by the upgrade, such as new apps, features, or functions. Verified References:
* : SAP S/4HANA Cloud Upgrade Guide, page 11

* C is correct because Iterative build with frequent inspections is a key characteristic of the Agile project approach. The Agile project approach follows an iterative and incremental development process, where the solution is built and delivered in small increments called sprints. Each sprint consists of planning, designing, building, testing, and reviewing activities, where the team inspects the solution and adapts to changing requirements and feedback. Verified References:
* : What is Agile Software Development?

* C is correct because the Central Business Configuration System (CBC) is a tool that enables customers to activate their SAP S/4HANA Cloud, public edition systems by following guided steps and entering configuration data. Verified References:
* : Central Business Configuration Overview

* B is correct because Project Management is one of the SAP Activate workstreams. The Project Management workstream covers all the activities related to planning, executing, monitoring, controlling, and closing the project. It includes tasks such as defining project scope, schedule, budget, resources, risks, issues, quality, communication, and stakeholder management.
* D is correct because Data Migration is one of the SAP Activate workstreams. The Data Migration workstream covers all the activities related to preparing, extracting, transforming, validating, and loading data from legacy systems to SAP systems. It includes tasks such as defining data migration strategy, scope, approach, tools, roles, responsibilities, quality criteria, and testing scenarios. Verified References:
* : SAP Activate Methodology Workstreams Names update
* : SAP Activate Testing Workstream

* D is correct because when deploying a new implementation on-premise, it is recommended to use SAP ABAP Workbench for custom development. SAP ABAP Workbench is a tool that allows developers to create, modify, and enhance ABAP programs and applications in an on-premise system. It provides various features, such as syntax check, debugging, testing, and transport management. Verified References:
* : ABAP Workbench