A ladder should extend at least 3 feet above the working surface primarily for stability and ease of access. This extension helps prevent tipping and provides a safer transition to the work area. Therefore, the best answer is to ensure a stable space for stepping onto the work surface. ;
A ladder should extend at least 3 feet above the working surface to provide a stable space to step onto the work area and to prevent tipping. This extension is crucial for safety and ease of access. Therefore, the chosen answer is C.
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