15)
the cotton gin was an important invention because
a)
it made cotton blooms much easier to pick.
eliminate
b)
it inadvertently led to the spread of slavery.
c)
it caused people to stop needing so much cotton.
d)
it made northern farmers more dependent on cotton.

The cotton gin was an important invention because b) it inadvertently led to the spread of slavery. This was because the demand for cotton grew even more, due to the cotton gin being produced in masses. The cotton gin is "a machine that quickly and easily separates cotton fibers from their seeds, allowing for much greater productivity than manual cotton separation."

We don’t know what the question is buddy