Final answer:
The insured must provide the insurer proof of regular maintenance prior to the breakdown.
Step-by-step explanation:
The correct answer is C. The insured must provide the insurer proof of regular maintenance prior to the breakdown. Regular maintenance is a condition for payment on a Mechanical Breakdown Insurance claim. This means that the insured must have properly maintained the vehicle in order to be eligible for coverage. The other conditions listed, such as allowing the insurer to inspect the vehicle before repairs are made, minimizing repair costs, and the cause of the breakdown not being associated with the front-end suspension, are all valid conditions for payment on a Mechanical Breakdown Insurance claim.