Question

ferroconcrete is reinforced concrete that combines concrete and _______.
a. lead \t\t\tc. copper
b. iron \t\t\td. aluminum

please select the best answer from the choices provided

○ a
○ b
○ c
○ d

Explanation:

Ferroconcrete (reinforced concrete) uses iron (in the form of steel bars, etc.) to reinforce concrete. "Ferro-" in ferroconcrete refers to iron. Lead, copper, and aluminum are not typically used for reinforcing concrete in this context.

Answer:

B. iron