B is correct because the requirements feature in SAP Cloud ALM is an accelerator that supports the fit-to-standard workshop in the Explore phase. It allows the project team to capture and manage the user stories that are identified during the workshop, as well as link them to the relevant scope items and test cases.
D is correct because the Business-Driven Configuration questionnaire is an accelerator that supports the fit-to-standard workshop in the Explore phase. It provides a set of questions that help the project team to understand and document the customer's business requirements and configuration settings for each scope item. Verified :
: SAP Cloud ALM
: Business Driven Configuration Questionnaire

According to the SAP Activate methodology for SAP S/4HANA Cloud, the Explore phase is where you collect the main attributes of the product as per the Agile definition. The main attributes of the product are the features, requirements, and user stories that describe what the product should do and how it should deliver value to the customers and stakeholders. The Explore phase involves a fit-to-standard process, where you validate the fit of your business processes to the standard SAP solution and identify any gaps or extensions that need to be addressed. You also prioritize and refine your product backlog, which is a list of user stories that represent the work needed to achieve the product vision1.