Who is farming in mountainous areas so difficult without terracing a: poor soil quality of mountainous land b: rugged landscape of mountainous land c: lack of human resources in mountains d: lack of animal labor in mountains

The correct answer is B: rugged landscape of mountainous land. The terraces are made so that erosion and surface runoff is reduced and the water that would be lost to surface runoff is properly utilized by the plants.

because the center-south is called the heart of the country