B. "Loss" means the sums that you are legally obligated to pay, and are actually paid, in the settlement or satisfaction of a claim or suit after making deductions for all recoveries and salvage.

C. "Underlying insurance" means the self-insured retention, policy or policies shown in the Schedule of Underlying Insurance, including any self-insured retentions that are a provision of such policies.

D. "Underlying limits of insurance" means the total sum of the limits of all applicable "underlying insurance" specifically listed in the Schedule of Underlying Insurance.