The correct answer is C. Insurance Ombudsman.
The Insurance Ombudsman is an independent and impartial dispute resolution service for consumers who have a complaint about an insurance company. The Ombudsman can investigate complaints about a wide range of issues, including policy terms and conditions, claims handling, and customer service. If the Ombudsman finds that the insurance company has not met its obligations to the consumer, it can recommend that the company pay compensation or take other action to resolve the complaint.
The Police are responsible for investigating criminal offenses. An insurance policy related complaint is not a criminal offense, so it would not be appropriate to report it to the Police.
The Supreme Court is the highest court in the land. It hears appeals from lower courts on a limited range of issues. An insurance policy related complaint is not a matter that would be heard by the Supreme Court.
The District Court is a lower court that hears a wide range of civil cases. An insurance policy related complaint could be heard by the District Court, but it would be more appropriate to first try to resolve the complaint through the Insurance Ombudsman.
In conclusion, the most appropriate option for an aggrieved customer to lodge an insurance policy related complaint is the Insurance Ombudsman.