Final answer:
The correct sentence completion is 'Won't impact the regular deployment flow. The workspace will be, in any case, created from the source branch, and will be merged onto the target branch afterward.' The focus is on version control and the workflow of deploying code changes.
Step-by-step explanation:
The question appears to be related to version control and the process of code integration in software development, particularly concerning the impact of switching credentials on the regular workflow of merging code changes. The correct answer to fill in the blanks in the provided sentence would be A) Won't, deployment, workspace, source branch, target branch.
When you switch credentials, it generally does not impact the regular deployment flow. A workspace is a local environment where developers make their code changes. The changes are based on a source branch, which is a branch in the version control system where the new code is initially created and committed. Eventually, these changes are merged into the target branch, which is the branch meant to receive the updates. Switching credentials is more connected to access control and authentication rather than the code merging process itself.