After six iterations, significant variations have occurred to project scope and schedule. These are due to the customer's technology regulations and security policies, which are regularly reviewed. The project manager suggests taking a new approach to the next iteration to avoid possible delays. What should the project manager do first?

Group of answer choices

Research new technology trends and management tools that have been successful on similar projects.

Use a backlog refinement meeting, and include the customer's change requests in the discussion.

Rank the importance of each improvement item, then implement actions identified during the last retrospective.

Engage in a cost$-$benefit analysis that can help predict the profits that could be realized through the use of new technology for the next phase.