At a minimum threshold, how many milliamps of current through the body produces a condition where most people would experience respiratory paralysis and be unable to breathe while still in contact with the energized conductor?

Correct Answer: Option C — 30 mA

At approximately 30 milliamperes of current flow, thoracic and respiratory muscles experience severe involuntary contraction, causing respiratory paralysis. The victim cannot breathe while maintaining contact with the energized conductor, requiring immediate external intervention and disconnection.