What is the minimum height required for handrails?

The correct answer concerning the minimum height required for handrails is that the standard height is typically between 30 to 36 inches above the surface of the stairs or floor. This height is designed to provide sufficient support and safety for individuals using stairs or ramps, ensuring that the handrail can be easily grasped while ascending or descending.

In this context, if "B. 80 inches" was selected, it indicates a significant oversight as 80 inches surpasses the conventional height required for handrails. The elevated height might actually hinder usability because most individuals would find it difficult to reach or grasp a handrail set at such a height. The standard dimensions exist to promote accessibility, ensuring that handrail systems accommodate the majority of users comfortably and safely.