Why is the period between the end of the american revolution and the constitution convection sometimes known as the critical period ?

During the 1780s, many thought that the country was experiencing a crisis of leadership, and in 1787 John Quincy Adams echoed these statements when he said that the country is being in the middle of a "critical period"

i believe the answer to your question is b. pay your bills early

while it was true that the cotton gin reduced the labor of removing seeds, it did not reduce the need for slaves to grow and pick the cotton.

explanation:

before eli whitney's invention of the cotton gin, picking and cleaning cotton was a slow, labor-intensive job. workers, usually slaves, had to pick the seeds from the cotton fibers by hand. this invention made it possible to grow large amounts of cotton on big farms and make money.