To prevent a ladder from moving, securing it to the structure is crucial for stability. Other methods include using a longer ladder and adding weight to the base, though soft surfaces should be avoided. Safety should always be the top priority in any ladder use. ;
To prevent a ladder from moving, it's best to secure it to the structure you're working on. Additionally, using a longer ladder and adding weight to the base can enhance stability, while avoiding soft surfaces is crucial for safety. Therefore, the most effective option is B: Secure the ladder to the structure.
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