D is not correct, i put d and got it wrong, the correct answer is "A"
A - it taught him how to lay railroad tracks with steel
Raising crops to be sold is called commercial farming
Answer:
Barcelona, I think I am not too sure
C- colonization era
Constitution era obviously isnt it
Reform era was known as the progressive era
the early republic era had to with transfer of govt
thus leaving colonization era as the last option
