Based on this reading, why are there hooks on the end of a stationary ladder? Additionally, every fire apparatus carries at least two ladders. The stationary ladder may be from twelve to fourteen feet long, and an extendable ladder must reach twenty-four feet. The stationary ladder has hooks on the end that attach to a roof to prevent slippage. An attic ladder, or collapsible ladder, may also be used for small areas where large ladders are difficult to maneuver.
The reading says the hooks attach to a roof to prevent the stationary ladder from slipping. Preventing slippage makes the ladder more stable and helps keep firefighters safe, so the correct choice is stability and safety.
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