I felt like A was trying to deepen/add onto the phenomenon which is what we are told to be aware of with wrong answers, which is why I leaned toward more to B which also kept air conditioning as my central point.

I'm looking at this as

Necessary: This HAS to happen for me to get to my end goal

Sufficient: If this happens I can get to my end goal but I DON'T NEED IT to get to my end goal