Brock Was Describing the Inside of His Doctor's Office to One

Brock was describing the inside of his doctor's office to one of his friends. In his description, he mentioned that there were two diplomas on the wall, even though this doctor does not have any diplomas displayed. Brock's error in recall illustrates the

A) role of semantic networks in long-term memory.
B) need for conceptual hierarchies in long-term memory.
C) need for a good executive control system in short-term memory.
D) role of schemas in long-term memory.