A program consists of four agile teams.

As defined in the Agile Practice Guide and the Scrum Guide, scaling agile practices requires coordination between multiple teams working on the same product or program.

Why Choice D is correct: Scrum of Scrums (SoS) is a technique used when multiple teams (typically 3 to 9) need to coordinate their work.

Each team conducts its own Daily Standup to synchronize internal work.

A representative from each team (often the Scrum Master, but it can be any team member) then attends the Scrum of Scrums.

The focus of the SoS is on cross-team dependencies, integration issues, and blockers that affect more than one team. While a standard standup asks " What did I do? " , the SoS asks " What has my team done that might impact other teams? " and " What do we need from other teams? "

Analysis of other options:

A (SAFe®): While SAFe uses Scrum of Scrums as a component, SAFe is a massive, highly structured framework that includes many other elements like PI Planning and Release Train Engineers. The specific meeting described is the technique of SoS itself.

B (Disciplined Agile®): DA is a " toolkit " that helps teams choose their way of working (WoW). While it supports scaling, the specific meeting described is a standard Scrum pattern known as Scrum of Scrums.

C (LeSS): Large Scale Scrum (LeSS) is a specific framework for scaling. While it involves coordination, it emphasizes having a single Product Backlog and often uses " Overall Retrospectives " rather than the specific representative-based daily standup pattern described in the question.

Key Concept: The Scrum of Scrums is the most common and fundamental scaling technique. It ensures that even as a program grows, communication remains decentralized but coordinated, preventing the " silo effect " that can occur when four separate teams work on a single initiative.