A __________ is defined as a sequence of steps and it is provided to afford the means of Ascent and Descent between the floors or landings.
A. Stair
B. Beam
C. Roof
D. Sidewalk
I have been asked this question in homework.
The origin of the question is Stairs Technical Terms topic in division Arches, Lintels, Stairs and Formwork of Construction & Building Materials
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