A stair section detail calls out a graspable handrail mounted 42 inches above the stair nosings. What is the BEST response during plan review?

Giải thích

Handrail height on stairs must be within a range measured vertically from the sloped nosings, generally 34 to 38 inches. A 42-inch handrail is above that range and should be corrected; 42 inches is a guard height, not a handrail height. Option a confuses the two. Option b ignores the rule. Option c states a single wrong value; the code allows a range, not a single dimension.