Which statement best describes an increment of working software?

An increment of working software is defined as a set of working features that are complete, usable, and can potentially be delivered to users. This is typically characterized by the definition of "done" agreed upon by the Scrum Team, indicating that the software is not just developed but also tested and meets the quality standards necessary for use.

Choosing the statement that it is "an additional feature in a usable state" accurately captures this essence because it emphasizes that the increment is not just about the addition of features, but also that these features are in a condition suitable for use. This aligns with the Scrum framework focus on delivering potentially shippable increments at the end of each Sprint.

The context of Scrum emphasizes continuous delivery of functional software, making it critical that each increment adds value independently, allowing stakeholders to gain benefit with each release cycle. This ensures that the product can evolve based on user feedback, ensuring that the team is aligned with stakeholder needs throughout the project lifecycle.