Final answer:
In project management, 'quality' refers to the deliverables being d. fit for their intended purpose, adhering to the project's requirements.
Step-by-step explanation:
In project management, quality is best defined as (d) Fitness for the purpose of deliverables. This means that a product or service meets the needs for which it was created, and conforms to the project's requirements. To evaluate the quality of a design, criteria and constraints are crucial.
Criteria refer to measurable values that allow for comparison among different designs to determine which is superior. Constraints are necessary conditions the design must fulfill. When engineers focus on the attributes of a product and adequately test prototypes, they ensure the deliverables are fit for their intended use. Therefore, fitness for purpose is a more comprehensive definition of quality in project management than options such as professionally-bound reports, reviews, audits, or inspections alone.