Grammar Nerd Poll

This has nothing to do with the substance of Steve Benen’s post about conservative preparations for judicial confirmation hearings, but the quote he used from a New York Times article is the proximate cause for this Grammar Nerd Poll:

What is the plural of “memorandum”?
A) “Memorandums”
B) “Memoranda”
C) “More than one memorandum”
D) Some other option I will explain in the comments

Leave your answer in the comments. Bonus nerd points for spotting the egregious grammar error in the text of the post.

(I don’t know what the egregious grammar error in the post is, but by the Iron Laws of the Internet, I’m sure there must be one.)