Which connected the millions of people living in the inca empire? a: loyalty b: writing c: money d: language

D- Language connected the millions of people living in the Inca Empire. Language barrier-free empire led to universal understanding in the people of the empire.

Language is the most basic qualities that a region is known by. In fact a region can be identified by the language people speak in that region. It is basically an instant connection for the people to have.

Hence, option D is correct that the millions of people living in Inca Empire were connected through language Quechua.

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The CORRECT answer is

b.   jim crow laws were enacted in northern states.