Dylan Dylan Is Using His Phone to Text His Friend Some

Dylan
Dylan is using his phone to text his friend some information about a party that they're supposed to go to that evening. The address is 1812 Lakeshore Drive. Dylan remembers this address easily because it reminds him of his favourite piece of classical music: Tchaikovsky's 1812 Overture. In fact, he hums his favourite part of that piece as he's texting the address. Dylan is very engrossed in the task and doesn't notice most of the noise around him in the coffee shop. He hears his name called, however, and looks up to see a girl he knows walking toward him. He can't remember her name, even though he knows he should know it. She asks him what he's got planned for the evening, and he tells her about the party. She cringes and says that she had been invited to the party as well, but had totally forgotten about it. Just then, Dylan remembers that her name is Mitzy. He remembers because when he met her, he thought she was a little ditzy and thought it was funny that her name rhymed with her demeanour!
-What is the term for the type of memory that failed when Mitzy didn't remember that she was supposed to go to the party that night

A)  declarative 
B)  self-referent 
C)  prospective 
D)  proactive