Universal Containers has developed custom Apex code and Lightning Components in a Sandbox environment. They need to deploy the code and associated configurations to the Production environment. What…

Change sets are a declarative tool suitable for simpler deployments between closely related orgs, but they are generally not recommended for complex deployments involving source control or continuous integration, which is implied by 'recommended process' for custom code.

The Force.com IDE is an older, Eclipse-based development tool that has been superseded by modern IDEs like VSCode with Salesforce Extensions and the Salesforce CLI.

The Ant Migration Tool, while functional for metadata deployments, is an older, XML-based tool that is less flexible and feature-rich than the modern Salesforce CLI for managing and deploying Salesforce projects.

Salesforce CLI (SFDX CLI) is the recommended and modern tool for source-driven development and deploying metadata, including Apex code and Lightning Components, from a sandbox to production environments, offering robust command-line capabilities for various development and deployment tasks.