James purchased liability insurance with a $50,000 limit from Insurer A. When Insurer A denied a claim that James thought should be covered, he bought a second liability insurance policy with a $200,000 limit from Insurer B. Before he cancelled the policy with Insurer A, a $90,000 loss occurred. The loss is covered under both policies. Insurer A is primary. If this loss is settled on a pro rata basis, Insurer A will pay $ will pay $ land Insurer B If this loss is settled on a contribution by equal shares basis, Insurer A will pay $ and Insurer B will pay $ If this loss is settled on a primary and excess insurance basis, Insurer A will pay and Insurer B will pay $