Final answer:
The question relates to manually deploying user stories with additional quality gates in a CI/CD pipeline, with 'Pipeline Manager, Promotion' being the most relevant answer. Quality gates are critical checkpoints in the pipeline that ensure code meets set criteria before advancing.
Step-by-step explanation:
When you are looking to execute a manual deployment for user stories from Dev 1 and want these to follow special behavior or pass through an additional quality gate before being deployed to INT, you're essentially talking about a process that happens within a Continous Integration / Continuous Deployment (CI/CD) pipeline. Of the options provided, 'b. Pipeline Manager, Promotion' seems the most appropriate. Here, Pipeline Manager refers to the tool or part of your CI/CD platform that orchestrates the workflow and moves code from one stage to another. Promotion signifies the action of formally moving code from one environment to another, typically gated by a series of checks or quality gates.
These quality gates are predefined criteria or sets of automated tests that the code must pass before moving to the next environment. In a CI/CD pipeline, setting up additional gates can involve configuring your pipeline to add steps or checks that must be passed, which could be anything from code coverage percentages to security vulnerability scans or even manual approval steps.