Explanation
Inviting users to co-create as accessibility experts means involving users who have accessibility needs or challenges in the design process as collaborators and consultants. This helps solve for the accessibility challenge by ensuring that the design meets the standards and expectations of the target audience.
References:https://trailhead.salesforce.com/en/content/learn/modules/salesforce-strategy-designer-certification-p

The best method of co-design workshop to help service agents pool their shared knowledge, see the bigger picture, and understand what may be causing poor and disjointed support experiences, and where other pain points and opportunities may lie is journey mapping, which is a visual representation of the user's journey across different touchpoints and channels. Ideation or prototyping may not be suitable for synthesizing and analyzing existing service experiences.

The criteria that the strategy designer should use to determine which feature to build first is value and effort.
Value and effort are two dimensions that can help evaluate and compare features based on their impact on achieving the desired outcomes and their difficulty or complexity to implement. Features that have high value and low effort are usually prioritized, while features that have low value and high effort are usually deprioritized or eliminated. Outcome and bandwidth or resourcing and budget may not be sufficient criteria for determining which feature to build first, as they do not account for both value and effort.

A storyboard is a tool that should be used to facilitate and share the vision of a new patient experience. A storyboard is a visual narrative that illustrates the user's journey with a product or service, using sketches, images, or text. It helps communicate the value proposition and key features of the solution, and how it addresses the user's needs and goals. References:
https://trailhead.salesforce.com/en/content/learn/modules/salesforce-strategy-designer-certification-prep/create-a

A Consequence Scanning workshop is a method that helps assess the potential positive and negative impacts of a planned service or product on different stakeholders and scenarios. The outcomes of this workshop are issues to act on, influence, or monitor, which help prioritize actions and mitigate risks. References:
https://trailhead.salesforce.com/en/content/learn/modules/salesforce-strategy-designer-certification-prep/conduct