The principle "Organize around products/services" meansbuilding dedicated cross-functional teams focused on customer offerings. This approach ensures that teams are aligned directly with the delivery of customer value, with all the necessary skills to deliver a complete product or service. This organization enhances focus, collaboration, and efficiency, driving greater value delivery to customers.
Option A (asking customers to pick from available products) does not reflect this principle, and Option C (project teams being best equipped) does not align with the DA emphasis on long-standing, product-focused teams over temporary project teams.
References:
* PMI's Disciplined Agile Senior Scrum Master (DASSM) curriculum materials.
* "Choose Your WoW! A Disciplined Agile Delivery Handbook for Optimizing Your Way of Working (WoW)", PMI.

The Lean life-cycle model is based on a continuous flow of work. In Disciplined Agile, Lean focuses on minimizing waste, delivering value continuously, and optimizing the entire value stream. Unlike other models like Waterfall, which follow a sequential approach, or Agile models, which may focus on iterative increments, Lean emphasizes a smooth, steady flow of value to the customer. Continuous Delivery Agile also involves a continuous flow, but "Lean" specifically is the framework built around this concept. Therefore, "D. Lean" is the correct answer.