They were all barriers for the colonial period
To my knowledge, the correct answer among all of the given choices is C.) Steam. If I'm not mistaken, this was the time that more trains came into use.
I hope this is the answer you were looking for and that it helps!! :)
Answer:
The truimph of the proletariat.
Explanation: Marx believed that workers would ultimately truimph and capitalism would be defeated
Answer:
True
Explanation:
Hope this helps!
It should be true if you are talking about ancient india.