The correct answer is 2. Terraced fields.
Explanation
The Incan agriculture was the set of practices that the Peruvian Inca culture made in its territory in the Andes mountain chain that was characterized by the rugged terrain. The Terraced fields were the principal way that the Inca farmers used to grow food in the mountains, they developed an architecture design to adapt the rugged environment by creating flat surface fields or terraces that made it easier to cultivate and irrigate the plantations. So, the correct answer is 2. Terraced fields
