What pre-columbian civilization was centered in modern-day peru?
a) aztec
b) inca
c) maya
d) olmec

Inca Civilization is the pre-Columbian civilization that was centered in modern day Peru. The correct option among all the options that are given in the question is the second option or option "B". During the 13th century, the Inca civilization arose from the highlands of Peru. The political, military and administrative center was also located in Peru. 

Bohr models are used to predict reactivity in elements. Reactivity refers to how likely an element is to form a compound with another element. When looking at Bohr models, we look at its valence electrons (the electrons on the last energy level) to determine reactivity.

Explanation: