The first society in the andes to exert regional cultural influence was that of

a.
chavin

b.
monte alban

c.
nazca

d.
moche

The best and most correct answer among the choices provided by the question is the third choice "Nazca"

The Nazca culture (also Nasca) was the archaeological culture that flourished from 100 BC to 800 AD beside the dry southern coast of Peru in the river valleys of the Rio Grande de Nazca drainage and the Ica Valley.

I hope my answer has come to your help. God bless and have a nice day ahead!

I'm pretty sure it's c. extremely gradual but not 100% sure though.