Final answer:
The correct answer is option c, meaning during a deployment, Copado replaces all Metadata from the Variables Environment with the Environment. Copado is a Salesforce release management tool handling the deployment process between different environments.
Step-by-step explanation:
When performing a deployment, Copado replaces all Metadata from the Variables environment with the Environment. The correct answer to the question is c. Deployment, Metadata, Variables, Environment. In this context, the Metadata refers to the data about the data—for instance, custom fields and object definitions in a Salesforce org—which is moved from one environment to another during a deployment process. The Environment typically indicates a Salesforce org, such as a testing, staging, or production environment, where the deployment is actually taking place. Copado is an end-to-end release management system that facilitates the deployment of Salesforce changes and automations.