Explanation
According to the PMBOK Guide, the business case is a document that describes the business need and the justification for the project1. It also provides information on the expected benefits, costs, risks, and alignment with the organizational strategy2. The business case is usually prepared by the sponsor or the initiator of the project, and it is the basis for the project charter3. The project manager should meet with the sponsor to review the business case and understand the business value of the project. This would help the project manager to provide the customer with an appropriate response that aligns with the project objectives and the organizationalgoals. The project manager should not examine the business value throughout the project, ask the team to organize a spike, or meet with the product owner to review the backlog before reviewing the business case. These actions may be useful later in the project, but they are not the first step to understand the business value of the project. References: 1: PMBOK Guide, 6th edition, p. 30 2: PMBOK Guide, 6th edition, p. 31 3: PMBOK Guide, 6th edition, p. 75