Question

In the late nineteenth century, which construction material did architects begin to use? A. wood B. stone C. steal D. cast iron

Answer 1

The cast iron was the central piece of construction material during the late 19th century. This architecture style was a famous style especially in the Industrial Revolution era because cast iron was cheap relative to all other materials and that it is as well strong. 

Answer 2

The answer on PLATO is C. steel