Once upon a time, in a far away swamp, there lived an ogre named Shrek (Mike Myers) whose precious solitude is suddenly shattered by an invasion of annoying fairy tale characters. They were all banished from their kingdom by the evil Lord Farquaad (John Lithgow). Determined to save their home -- not to mention his -- Shrek cuts a deal with Farquaad and sets out to rescue Princess Fiona (Cameron Diaz) to be Farquaad's bride. Rescuing the Princess may be small compared to her deep, dark secret.
C. The de acidification process preserves pages by neutralizing acid with magnesium oxide, raising the pH level of the paper, and minimizing the alkaline reserve.
Well it could be A or C 'cause brainstorming is really good but also is asking your friends about what they would enjoy in a paper. But with that said, I would go with C.