A Guaranteed Replacement Cost (GRC) clause is a special provision in homeowners' insurance that ensures the insurer will pay the full cost to rebuild or repair the dwelling even if the loss exceeds the stated policy limit, provided all policy conditions are met (such as insuring to value and notifying the insurer of changes to the building).

This clause protects homeowners from unexpected increases in construction costs due to inflation, labour shortages, or material price spikes. The insurer guarantees complete reconstruction of the home, not merely up to policy limits.

Option A is not a recognized policy clause.

Option B (total replacement cost clause) is not the standard industry term.

Option C (pure restitution clause) does not exist in homeowners insurance terminology.

The only accurate clause that obligates the insurer to pay above policy limits is the Guaranteed Replacement Cost clause.