Which of the following is the process of developing a document that formally authorizes a project or a phase?

Define Scope develops a detailed description of the project and its deliverables, which occurs after the project has already been authorized.

Develop Schedule analyzes activity sequences and resource estimates to produce a project schedule model, a planning process unrelated to authorization.

Develop Project Charter is the specific PMBOK process that creates the project charter, the document that formally authorizes the existence of a project or a phase. It documents high-level requirements, objectives, and the project manager's authority to use organizational resources. All other initiation activities depend on the charter existing first.

Create Work Breakdown Structure decomposes project deliverables into smaller, manageable components and is a planning process, not an authorization process.