When the Load Method Is Called on an EAV-Based Data

When the load method is called on an EAV-based data model, which of the following occurs before the load method returns?

A) walkAttributes is used to call load on the backend model of each attribute to load its corresponding value.
B) _afterLoad is called on the source model of each loaded attribute that has one.
C) walkAttributes is used to call afterLoad on the backend model of each loaded attribute that has one.
D) walkAttributes is used to iterate over each attribute and load its data from the correct table on the database.