In design-build, which entity combines both design and construction responsibilities?

In design-build, the design-build entity is the correct answer because it represents a unified approach that integrates both design and construction responsibilities into a single contractual relationship. This entity assumes full accountability for the project from its inception through to completion. By having one entity responsible for both aspects, it streamlines communication and coordination, reduces the risk of conflicts that might arise from having separate entities for design and construction, and typically leads to enhanced efficiency and faster project delivery.

The client typically plays a role in defining project requirements and approving the design, but does not take on the combined responsibilities of design and construction. The project architect is primarily focused on the design aspect and does not engage in the construction process directly. Similarly, the construction manager operates usually in a more traditional setting, often overseeing construction but without direct responsibility for design, thus separating the two critical disciplines.