Which of the Following Is NOT an Example of the Tip-Of-The-Tongue

Which of the following is NOT an example of the tip-of-the-tongue (TOT) phenomenon?

A) You recognize an actor in a movie, and can't remember where you have seen him or her before.
B) You're given a multiple-choice question on a test, but can't remember the answer.
C) You're filling out a crossword and can't remember a word, even though you know you know it.
D) You're writing a paper and can't think of a good word to use that means "to lessen the severity of . . . ."