I’m rehearsing for a play called "Skin and Liars," by Dennis Foon, I play Lo. There are a few lines that are Cantonese, but I personally prefer Mandarin, since it’s easier for me. My teacher disagreed and said she’ll only accept if it’s geographically correct, so…
If a Chinese person was born in Hanoi, North Vietnam, would they speak Cantonese or Mandarin?
Note: I cannot change this to Vietnamese.