Researchers Have Explored Ways of Undoing Forgetting, with Some Success

Researchers have explored ways of undoing forgetting, with some success. Which of the following is TRUE of these techniques?

A) Techniques can help someone remember information, even if he or she didn't attend to it during initial encoding.
B) These techniques can be used to overcome the effects of interference.
C) These techniques are based on the concept of cuing memories.
D) These techniques focus on only the most confidently described memories.