The slave ships brought in weapons and fabric from Europe and sold them to warlords and slave traders in ports of Africa the slave traders in return sold the slave ship owners the captured men, women, and children. Industries in Europe depended on the (blank raw materials, finished products, equipment) that the slaves produced in European colonies in the Americas

Industries in Europe depended on the raw materials that the slaves produced in European colonies in the Americas.

Explanation:

When the Europans reached the Americas and conquered large portions of it, they saw that there is a huge potential there, especially by producing cash crops. In order to make a big profit, they needed very large plantations, and having large plantations meant that a lot of labor force was needed. The Europan settlers were not a lot in number, and the native people suffered very badly because of the spread of diseases and war, so another solution was needed.

The solution came in obtaining slaves from Africa. Seeing that the more powerful African kingdoms have an enormous amount of slaves and are willing to trade them for certain goods, the Europeans rushed to do so. Over time, few million Africans were taken to the new world, many of which did not survive, but the ones that did were crucial for the economy and profit of the colonies because they were the dominant labor force in the fields.

d. new methods of assembly are introduced.

explanation:

this allows for the goods to be made on a larger scale. not faster because now it is shown to be made better, hence the greater productivity in the question. it is calling for something new to be introduced.