Answer: c. is violating the Fair Debt Collection Practices Act.
Step-by-step explanation:
A person being in debt does not mean that they will lose their rights. They are still citizens and certain rights will be protected and these are shown in the Fair Debt Collection Practices Act.
One of the requirements of this Act is that debt collectors do not call between the hours 9pm and 8am as these hours are unreasonable to disturb people at. In calling Hilda at 1 am or 2 am therefore, this collection agency is in violation of the Act and can be sanctioned.