What are two factors affecting fire spread in strip malls?

The correct choice highlights two critical physical characteristics that significantly influence fire spread in strip malls. Large undivided areas create a spacious environment that allows flames to travel more freely and quickly, increasing the likelihood of extensive fire damage. These open layouts can facilitate rapid fire spread across connected spaces, as there are fewer barriers to halt the progress of flames and smoke.

Heavy fire loads, which refer to the amount of combustible material present in a given area, further exacerbate the risk of fire spread. Strip malls often contain a high volume of goods, packaging materials, and furnishings that can ignite and feed the fire, leading to a more intense and widespread incident. Together, these factors create highly conducive conditions for rapid fire development, underscoring the importance of understanding building design in fire safety protocols and firefighting strategy.