Which two settings cannot be changed after creating an Adwords account?

Which two settings cannot be changed after creating an Adwords account?

Which two settings cannot be changed after creating an Adwords account?

When you create your account, you’ll be asked to choose both a currency type and your time zone. You can never change the currency or time zone that you choose for your account, so select these settings carefully. They’re used to determine how you’re billed.