Read the following passage: 'Firefighters must understand building construction because fire behavior varies significantly based on structural type. Ordinary construction buildings with wood floors and masonry walls behave differently under fire conditions than steel-framed buildings or wood-frame structures. Collapse timelines differ, affecting how long interior operations can safely continue.' What is the MAIN idea of this passage?
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A
Steel-framed buildings are the safest for interior operations
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B
Ordinary construction buildings always collapse faster than wood-frame buildings
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C
Understanding building construction helps firefighters predict fire behavior and collapse risk
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D
Firefighters should avoid all interior operations in burning structures