Answer:
They built cisterns and irrigation canals that they angled down to fit around the mountains, they also cut terraces into the hillsides
Explanation:
En estas cartas, Cortés describe su viaje a México, su llegada a Tenochtitlan, capital del imperio azteca, y algunos de los eventos que resultarían en la conquista de México.
First option, "se". (won't let me post due to insufficient amount of characters)
It’s c. se
because
me=i
te=you
se=her/him/them
nos=we