Well a opera has no spoken dialogue and a musical they are speaking and singing so therefore it would be A.) Edwardo
Answer:
Well I remember back in the renaissance or Shakespearean era, around when the black plague started theaters weren't indoors but rather outdoors. If you go that far back I guess people weren't kept cool but you have to more specific.
An example of what the theatre looked like
Do it do it do it do it do it do it