The cotton gin sped up the production of cotton by planting cotton seeds in neat rows for cultivation.
picking cotton without damaging the cotton plants.
separating the seeds from the cotton plant quickly.
packing cotton fiber into bales for shipment to mills.

c

Explanation:

yup! you are correct it is b.

lee and grant, both of whom held the highest rank in their respective armies, had known each other slightly during the mexican-american war (1846-48) and began their dialogue by exchanging awkward personal inquiries. characteristically, grant had arrived in his mud-splattered field uniform while lee had turned out in full dress attire, complete with sash and sword.

explanation: