During a Product Backlog refinement meeting, the Product Owner introduces a business objective that will be worked on for the next several Sprints. The Product Owner envisions several key features necessary to be delivered in order to meet the business objective. As the features will be using sensitive user data it will be subjected to external security audits. These non-functional security requirements were not applicable to previous Increments.
What are two good ways the Development Team can handle these high-security concerns? (Choose two.)

What is the recommended size for a Development Team (within the Scrum Team)?

Part of the team's Definition of "Done" requires creating or updating technical documentation in order to maintain the product and/or features in the future. The team's technical writer will be on vacation during the Sprint.
What should you do?

Technical Debt can lead to false assumptions about the current state of the system and the Increment reviewed at the end of the Sprint.

Who must ensure that the work done for a Product Backlog item conforms to the Definition of "Done?"