What is the appropriate warning would you give to "a company that has not paid you bill"?
Choose one answer.
a. Unless you collect your tools this week, we will be forced to throw them away.
b. If you do not park your cars elsewhere, we will be forced to call the police.
c. Unless you pay our bill at once, we will be forced to cancel your new order.
d. If you do not come to work on time in future, we will be forced to dismiss you.