Question

Which best describes the rise of the Inca Empire? 
a. People migrated and settled in the desolate highlands of the Andes.
b. Missionaries proselytized and converted neighboring city-states.
c. Trade with neighboring kingdoms encouraged a government takeover.
d. A series of military campaigns led to the defeat of the Chimu kingdom.

Answer 1

How did the Inca Empire grow so rapidly?

There were probably three or four things that the Incas did simultaneously. One, they worked very hard in diplomacy, negotiating relationships with neighbors or with people who were targets for incorporation into their expanding territory, and they tried to work out amicable relationships through gift exchanges, marital exchanges, or political alliances. Failing that, they would threaten those people with military conquest, and that having failed, they would actually undertake military conquest. So there was a combination of diplomacy and inducement, coercion, and militarism all wrapped up into one strategic package.
http://www.pbs.org/wgbh/nova/ancient/inca-empire.html

Answer 2

So D?

Answer 3

Or C

Answer 4

C

Answer 5

Now i could be wrong but i think that its D don't take my word for it because we did this a few weeks ago and i don't have that good of a memory but thats what i think that it is

Answer 6

Thank you both, I think C seems more correct based on what @Kfsv10 said