Answer:
36-45 inches
Explanation:
For all types of objects that carry dangerous voltages and have the ability to discharge, regulations typically dictate a perimeter of 36-45 inches, within which proper safety measures and markings with non-conductive materials must be established. This is crucial to prevent electrical discharges that could rebound, amplify, and pose severe hazards.
You have one answer that complies with this regulation...3 feet.
Nonetheless, 5 feet isn’t entirely off the table.
The alternative choices are absurd and will significantly heighten the risk.
Your top choice should be 3 ft, but 5 ft is also an acceptable fallback.