Final answer:
According to OSHA guidelines, the minimum distance between power lines and a portable non-metallic ladder is 10 feet. Hence the correct answer is option B
Step-by-step explanation:
According to OSHA guidelines, the minimum distance between power lines and a portable non-metallic ladder is 10 feet. This distance helps to ensure the safety of workers and prevents electrical hazards. It is important to maintain this distance to avoid any accidents or injuries.
Hence the correct answer is option B