How did the cotton gin and the spinning jenny change the making of textiles (cloth) from a cottage industry to a factory-based industry? a. they made spinning much more difficult for an individual person to handle machines were needed. b. they provided a way to add color to cotton and other fibers, which increased demand. c. they made it possible to produce the thread needed for weaving much more quickly. d. they provided a way to produce and weave artificial cotton, which was easier to weave.