Which of the Following Best Illustrates How Problems with Encoding

Which of the following best illustrates how problems with encoding can contribute to forgetting?

A) You forget the name of a person because you had a particularly negative and embarrassing interaction with her the last time you saw her.
B) You forget the name of a person because you failed to transfer this information into your long-term memory in the first place.
C) You forget the name of a person because you haven't seen her in many years and time and lack of use has eroded your memory of her.
D) You forget the name of a person because she looks very similar to someone else that you just met.