Answer:
The gin improved the separation of the seeds and fibers but the cotton still needed to be picked by hand. The demand for cotton roughly doubled each decade following Whitney's invention. So cotton became a very profitable crop that also demanded a growing slave-labor force to harvest it.
correct answer B
The other term referred to the Republican Party of United States is GOP. Its complete abbreviation stands for 'Grand Old Party'. Thus, the 'G' stands for 'Grand'. In fact, the current president of America, Donald Trump, is from the Republican Party. Unlike the Democrats, the Republican Party's ideology is focused on American conservatism.
A. uncontrolled physical movements