Options B, E are correct. A deadline requires a qualified recommendation despite an unresolved requirement. State the explicit assumption and its implications, then identify exactly how the design would change if the assumption proves wrong. Discovery is not a product-selection exercise. The architect should ask what evidence would demonstrate success, identify hidden dependencies and reconcile conflicting stakeholder interpretations before the proposed configuration becomes an implementation commitment. The other choices either substitute unverified assumptions for the customer’s actual evidence or solve a secondary issue rather than the controlling requirement. The architect should retain evidence for this decision in the requirements matrix, architectural assumptions, implementation plan and acceptance criteria. That discipline establishes a defensible link between the customer’s stated need and the capabilities delivered. In requirements engineering, the architect separates the outcome the organisation seeks from suggested products and the conditions in which the system must operate. Record the owner, meaning, priority and acceptance method for each item; assumptions that alter scope or risk must be visible to the customer.

Study Guide Reference: HPE Edge-to-Cloud Fundamentals — Gather and Analyze Customer Business and Technical Requirements; Evaluating Customer Requirements and Workloads; Architecting Methodology.