Which of the Following Is an Example of a Memory

Which of the following is an example of a memory illusion?

A) Trying to remember someone's name, but struggling.
B) Trying to hold a phone number in your mind, but getting interrupted and forgetting it.
C) Remembering everything on your grocery list, except one item in the middle.
D) Remembering, incorrectly, that your professor's office has framed degrees on the wall.