The rightmost digit is the one's digit ( 2^0 ). If it's set, the number is odd, else it's even.
[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.
Rachael should describe information system to the management as an organized system that helps collect or gather, organize, track, store, manipulate, and analyze data to generate and distribute the information from gathered data to appropriate persons. The information generated is useful for managing your operations and making decisions. The efficient use of Information Systems will, without a doubt give a lot of opportunities to the company.
4. Although all of them could be true, this one is most acurate :)