Answer:
The right answer is D.
Step-by-step explanation:
Astronomy occupied an important place in the Inca civilization. Astronomic observations played a role in everyday life. They identified constellations and single stars and gave them a purpose; they believed that all in the universe was interconnected. Those findings were also applied to agriculture, a relevant practical use. Their religion was associated to astronomy. They had their own system of counting, the quipu, with cords and knots.