Hello,
Your answer would be:
They use both!
I found this on the internet:
“The table below solves the riddle: In mainland China and Singapore, Mandarin is the spoken language and people resort to Simplified Chinese when they write. In Hong Kong, Cantonese is the predominant dialect while people write in Traditional Chinese.”
The quarter 25 cents
The dime 10 cents
The nickel 5 cents
The pennie 1 cent
I mean it depends on what question they are asking. Try to the best of your abilities. You answer the question by your knowledge and wisdom. And if you don’t get a right and that’s OK at least you helped right? Or if they ask to talk to somebody you can always do that too. Hope that helped XD