The invention of balloon-frame construction came about with the development of __________.
A) mass-produced nails
B) hot-air balloons used to lift the roof timbers
C) concrete
D) wide, hand-cut lumber

Question

Quizplus · Accepted Answer

Balloon-frame construction required a large number of nails to hold the structure together, and the invention of mass-produced nails made it possible to construct buildings in this way. Hot-air balloons and concrete were not directly related to the development of balloon-frame construction, and while wide, hand-cut lumber may have been used in early balloon-frame construction, it was not essential to the development of the technique.

The Invention of Balloon-Frame Construction Came About with the Development