What is classified as a high hazard occupancy?

A high hazard occupancy is defined by the presence of excessive levels of hazardous materials that pose a significant risk to health and safety. Specifically, this classification involves structures or areas where there is a large amount of Class A combustibles, which typically include materials like wood, paper, and textiles, and Class B flammables, such as liquids that can ignite easily. When these materials exceed moderate hazard levels, they create a substantial fire risk, necessitating more stringent building and fire safety regulations.

In this context, the correct classification of a high hazard occupancy aligns with the characteristics outlined in choice C, as it explicitly recognizes the presence of excessive Class A combustibles and Class B flammables, highlighting the heightened risk associated with overcrowding of these hazards. This determination is critical in ensuring proper fire safety measures are enforced in these environments to protect life and property.

The other options describe scenarios with insufficient quantities of combustibles and flammables to warrant the high hazard classification. Therefore, they do not meet the criteria for evaluating an occupancy as a high hazard.