After meeting a new neighbor, Shandra mistakenly calls him "David" on several occasions. Eventually the neighbor kindly corrects her, saying, "My name is actually Darren." After that, Shandra correctly calls the man "Darren," but initially she has to work hard not to call him "David" instead. Which one of the following concepts best characterizes the change in Shandra's memory?

a. Retrieval-induced
b. Forgetting
c. Both a & b
d. None of these