GIVING BRAINLIEST TO THE FIRST ACTUAL ANSWER Eli Whitney and Samuel Slater were important to the early Industrial Revolution in the United States because they

A. developed new methods of manufacturing
B. invented new forms of transportation
C. built machines powered by steam
D. improved techniques in the production of steel

Option A

Explanation:

The answer is option A or "developed new methods of manufacturing." Eli Whitney's most known invention was the cotton gin, which was a machine that enabled to remove the seeds from the cotton in factors. Samuel Slater's most known invention was the cotton mill which turned the cotton into threads of fabric to be used for other purposes. Both of these inventors made huge impacts during the industrial revolution and two of the biggest names of that generation.

Hope this helps.

it granted civil rights to african americans.