Mitzi Learned the Concept of Classical Conditioning for the First

Mitzi learned the concept of classical conditioning for the first time in her psychology class. It took her about 60 minutes to thoroughly learn the process. Three weeks later, she had an exam in that class that covered classical conditioning. As she studied for that part of her exam, she realized it took her about 60 minutes to understand it once again. Which of the following statements is true of Mitzi based on this scenario?

A) It is evident that she did not maintain any of the original learning in her long-term memory.
B) Based on the relearning technique, her savings score was 100%.
C) It can be ascertained that Mitzi learned about half of the material the first time around.
D) After calculating Mitzi's savings score, it is clear that she maintained about 60% of what she learned the first time around.