A custom Visualforce controller calls the ApexPages.

Option B: Thecomponent renders all messages added to theApexPagesmessages collection on a Visualforce page, including those added by theApexPages.addMessage()method.

Not Suitable:

Option A:is for specific fields, not for the general messages collection.

Option C:is used for displaying a single, static message, not the dynamic collection of messages.

Option D:does not display messages.

Visualforce ApexPages Messages