The correct answer is D . The client’s discovery inputs point to three separate collaboration needs. First, heavy cross-functional collaboration and a desire to reduce communication barriers require a general global workspace where internal employees can collaborate broadly. Second, working with many external partners creates a need for an external workspace or external-collaboration structure where partner-facing work can be governed and organized. Third, reducing barriers and supporting connection across the organization commonly benefits from a social workspace, where employees can build culture and community without cluttering the primary work environment. Option A addresses global and external work but omits the social/cultural collaboration layer. Option B includes social but fails to provide a dedicated external-collaboration design. Option C is too simplistic; putting all collaboration into one global workspace can increase noise and blur governance boundaries, especially with external partners. Option D gives the cleanest basic grid pattern: broad internal collaboration, structured external collaboration, and dedicated social connection.

Reference topic: Grid Design — basic Enterprise Grid model, global workspace, external workspace, social workspace, cross-functional collaboration, and partner collaboration design.

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