Final answer:
The correct answer would typically involve Frame Scaffolds exceeding 125 feet to be designed by an engineer, but given the options, none directly satisfy the safety requirements based on standard safety regulations for scaffolding. Additional context or options would be necessary to provide a definitive answer.
Step-by-step explanation:
Frame scaffolds exceeding 125 feet in height are a subject of specific regulations and guidelines for construction and safety. According to the Occupational Safety and Health Administration (OSHA), scaffolding that exceeds a certain height must be designed by a qualified professional to ensure the structure’s integrity and safety. The design must take into account variables such as wind loading, weight capacity, and the type of work being performed.
In response to the multiple-choice question, the correct statement is that Frame Scaffolds exceeding 125 feet must be designed by a qualified engineer to ensure safety and stability, although the question does not list 'designed by an engineer' as an option. Approximate guidance is often that scaffolds over a certain height, like 125 feet, are subject to more stringent design and safety standards, rather than being simply allowed or prohibited without additional conditions. Therefore, none of the given options (prohibited, allowed, mandatory, recommended) directly answer the question based on standard safety regulations. In such cases, more context or options would be needed to provide the correct answer.