The correct option is Steps are discrete commands or actions that run in order within a single job.

This is correct because a step is the smallest unit of execution inside a job. Steps run sequentially on the same runner so they share the job environment and can pass data through files and outputs. A step can either invoke an action or run a shell command, and features like conditional execution and environment variables are defined at the step level within the job.

Steps describe the global execution lifecycle of actions across all jobs is incorrect because steps are scoped to a single job. The global lifecycle is defined by the workflow and the jobs it contains, and cross job ordering is controlled by job dependencies.

Steps are used to publish integrations to GitHub Marketplace is incorrect because publishing to Marketplace is about packaging and releasing actions in a repository. Steps are simply how you execute actions or commands within a job and they are not a publishing mechanism.

Steps are identical to an entire workflow and refer to the same scope is incorrect because a workflow is the top level automation that contains one or more jobs. Steps are a smaller unit that exist only inside a single job and do not share the same scope as a workflow.

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