I don’t understand this question
Answer:
Jack has to be very calm and try his best to present himself in an outward way and think about the fact that by the end of the night no one will remember that he messed up, I feel like he'll be okay :)
[B], developing the art style guide and production plan.
It wouldn't be [A], because patches are released to consumers of the game, to fix bugs and add new content, which won't be done until post-production.
It wouldn't be [C] either, as it is also post-production, because you are sending the game to produced, packaged and shipped, meaning the game has already been pretty much fully developed.