Final answer:
The correct answer to the deployment question is B. Source, configurations, fail. To successfully deploy features, all necessary configurations must be in place in the source environment; otherwise, the deployment will not succeed.
Step-by-step explanation:
If a particular feature is not configured in the source environment and you try to deploy metadata related to this feature, the deployment will fail. The correct answer is B. Source, configurations, fail. When deploying features in most development and deployment workflows, especially in software engineering and DevOps practices, all dependencies and configurations must be correctly set up in the source environment. If certain features or configurations are missing or incorrect, the deployment process typically encounters errors that prevent successful completion. It's crucial to ensure that all necessary metadata and configurations are present and correct in the source environment before attempting a deployment to the target or destination environment.