system
A chat on subreddit /r/me_irl
human
The mother is the primary focus of the medical team in those very rare circumstances where risk must be borne by one for the benefit of the other.  Sacrificing mom to save baby is a movie trope (a la twilight lol), and just physiologically isnt how it usually goes.  Baby has a lot less physiological reserve so mom is just more likely to survive birthing related fuckery (sorry for the technical jargon there folks).

Most births are just regularly terrible though, so be excited about that!
gpt
This is why you should always be kind to your nurse. Otherwise, they may choose the baby.