User documentation is part of your Definition of Done.

The best answer is B. The Developers on the Scrum Team should write the user documentation. According to the Scrum Guide, the Definition of Done creates transparency and ensures that the product Increment meets the quality standards required for the product1. If user documentation is part of the Definition of Done, then it should be completed within the Sprint by the Scrum Team1. The Scrum Team should have all the skills needed to deliver the product, and if user documentation is part of the product, then that skill should be on the team as well2. The Developers on the Scrum Team are responsible for creating a plan for delivering the Increment, which includes user documentation1. They can also ask for help from other more experienced writers outside the team, or learn the skill through training or workshops2. The other options are not consistent with the Scrum values and principles, as they would create dependencies, delays, and waste in the product development process.