Final answer:
The commercial property coverage that would likely cover clean-up costs for windstorm damage at Gradient Industries is Debris Removal.
Step-by-step explanation:
The commercial property coverage that might pay for the cost of cleaning up the shingles and broken glass at Gradient Industries, following a fierce windstorm, is C. Debris Removal. This type of coverage typically deals with the expenses associated with the clean-up of debris following an insured event, such as a windstorm that causes physical property damage. It is important for businesses to carry proper property insurance to cover such events and ensure that they can resume operations quickly without bearing the full burden of cleanup costs.