B2C Commerce allowsmultiple modules to be registered for the same extension point, including multiple registrations in a singlehooks.jsonfile. Salesforce explicitly documents this behavior. When the extension point is invoked, all registered modules are executed rather than stopping after the first implementation.
Option B is incorrect as stated for modules registered together in one hook configuration: Salesforce states that the developer cannot explicitly control their execution order through the registration itself. Across cartridges, however, hook execution follows cartridge-path order, so cartridge precedence can affect the sequence in which implementations from different cartridges execute. Option C is also incorrect because Salesforce specifies that when multiple hook modules are called,the last hook ' s return valueis the return value that is ultimately used—not the first hook ' s return value. All registered implementations still execute even if earlier implementations return values.
This behavior is important when several cartridges extend the same business process. Developers must design hooks to coexist without assuming that their implementation is the only one registered.
Study Guide reference:Application Development — SFRA hooks,hooks.json, extension points, HookMgr, cartridge-path execution, and multiple hook implementations.
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