The correct answer is C. Coverage F — Medical Payments to Others provides limited no-fault medical-expense protection for qualifying bodily injury to persons other than an insured. Coverage commonly applies to persons injured on an insured location with permission, and in specified situations involving the insured's activities, residence employees, or animals.
A special rule applies to a residence employee. Medical Payments may cover a residence employee away from the insured location when the injury arises out of or in the course of the employee's work for the insured. However, standard HO-3 analysis excludes a residence employee's injury occurring away from the insured location when the injury is unrelated to that employment.
The nanny in option C is engaged in personal shopping, not performing duties for the insured. The necessary employment connection therefore does not exist.
The meter reader in A is injured on the insured premises, the mail carrier in B has an injury arising from the insured's dog, and the invited family friend in D is injured while on the insured location. Those scenarios fall within the general scope of Coverage F, subject to normal policy conditions and exclusions.
The Series 17-70 outline tests Homeowners Coverage F — Medical Payments to Others, definitions, exclusions, and Section II conditions.
Therefore, C is correct.