Answer:
Indus, Vedic ,Maurya, Gupta
give more details, and ill answer it...
The right answer for this question is true
The late 19th-century United States is probably best known for the vast expansion of its industrial plant and output. At the heart of these huge increases was the mass production of goods by machines. This process was first introduced and perfected by British textile manufacturers.
I think a. the ban on slavery was blamed for slow economic growth , and slavery became legal in 1750.