stormserena
stormserena stormserena
  • 22-12-2018
  • History
contestada

please help me

What made the railroad expansion possible because thousands of miles of track were made of this?

A. oil

B. copper

C. gold

D. steel

Respuesta :

BluSeaa
BluSeaa BluSeaa
  • 22-08-2019

The answer is D. Steel.

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