Which of the following business rules should be implemented or enforced in the structure of a database?

Group of answer choices

Each customer has exactly one account

When customer accounts are more than $27$ days overdue they are charged a $2\mathrm{.}6\%$ late payment fee

The current interest rate on accounts is $2\mathrm{.}17\%$

Each customer must have a First Name and Last Name

Each invoice is associated with exactly one account