Final answer:
Fidelity Bond Insurance is the commercial crime insurance coverage that might cover the loss of money due to the bank's vault door being blown open and money being burned during a robbery.
Step-by-step explanation:
The commercial crime insurance coverage that might cover the loss in the scenario where the bank's vault door has been blown open and a large amount of money has been burned is c) Fidelity Bond Insurance. Fidelity bond insurance is designed to protect businesses from losses caused by fraudulent acts of employees, which could include theft and possibly damage caused by breaking into a vault such as the scenario described. It is important to note that the specific terms and conditions of the insurance policy will determine the extent of the coverage.