How did the development od the assembly line affect who henry ford could hire at his plants

The development of the assembly line enabled Henry Ford to do two things. The first, is that it enabled him to use lower-skilled laborers as the assembly line was able to stand in for a lot of what was previously done by experienced skilled laborers. It also allowed Henry Ford to be more particular in who he hired, which enabled him to pay more for good workers and to get rid of workers that he deemed unacceptable.

might be agreeing to participate ethically with other european nations in the slave trade

or notifying other european nations when taking possession   of african territories

d. china

good luck

d is the best choice