Search engines are programs that search for and identify items based on a user input keyword, phrase, etc. Examples include google, bing, etc.
Answer:
Free/busy settings can be enabled.
One extra time zone can be created.
Display and theme settings can be changed.
Options are accessed through the Backstage view.
Explanation:
Just took it
[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.