Once again, I'm testing the waters, so to speak (pun intended). I'm here to ask you one simple question: How do you like your water? Which of the choices depicted do you enjoy the most when hydrating yourself.
I would probably go with 2a 5b. Fizzy/sparkling and from a glass. Prefered slightly cold but not with ice.
A2B1 and A5B2. Room temperature water in my house is chilled because I try ro save money by not heating my house too warmly, and hot water because I try to save money by not heating my house too warmly.