Answer:
C This policy will be excess if the other policy is in a different insurer.
Step-by-step explanation:
Concurrent Insurance is a situation where there are more than one insurance policy for same risk. This is insurance policy which is usually with one primary policy covering the basic loss and then there is secondary policy which provides the excess loss coverage. There can be some clauses in the policy which will define the extend of the loss coverage. This is suitable for business with significant risks. Here also in the question there are two insurance policies for a personal auto.