What is the benefit of using `hooks` in SFCC?

Using hooks in Salesforce Commerce Cloud (SFCC) is primarily beneficial for extending or modifying existing functionalities without altering the core code. This approach allows developers to implement custom behavior or additional features without risking the integrity of the original codebase. Consequently, modifications through hooks can facilitate easier upgrades and maintenance since the core functionality remains intact.

For instance, if a developer wants to add specific validation or logging functionality, they can use hooks to insert this logic into the execution flow at designated points. This modular design ensures that future updates to SFCC's core code do not overwrite or conflict with the customizations made via hooks, promoting a more stable and maintainable development process.

Other options, while relevant to broader software development practices, do not align as closely with the specific functionality and purpose of hooks in SFCC. Therefore, the choice of using hooks for extending or modifying functionalities captures the essence of their purpose within the SFCC ecosystem most comprehensively.