Which of the following represents an "insured contract" under the CGL policy?
A. Arnie Architect agrees in a contract with Polson Homes to indemnify Polson for liability Polson incurs as a result of an error in the design documents.
B. Marston General Contractors agrees to indemnify a project owner for a loss that occurred before the execution of the contract.
C. Webber Contractors agrees to hold Ernie Engineer harmless for third-party bodily injury or property damage arising out of Ernie's physical presence on the job site.
D. Gencon agrees to indemnify its landlord for fire damage to the offices Gencon leases from the landlord.