What factors determine the severity of an electric shock?

The severity of an electric shock is influenced by multiple factors that directly affect how the electric current interacts with the human body. The correct choice highlights three critical elements: the amount of current, the path the current takes through the body, and the duration or time the individual is in contact with the electric source.

The amount of current is fundamental since higher currents can lead to more significant physiological effects, including potential damage to vital organs like the heart. The path through the body matters greatly; for instance, a current passing through the heart can be far more dangerous than one that travels through a less critical area. Lastly, the time in the circuit is key because prolonged exposure to electric current increases the likelihood of severe injury or fatal outcomes.

These factors, when combined, provide a comprehensive understanding of electric shock severity, which is why this choice is the most accurate. Other options contain elements that do not directly correlate with the electrical aspects of the shock or include irrelevant factors that don't play a significant role in determining shock severity.