Answer is D. The Sierra Madre
Step-by-step explanation
The Inca invented terrace farming, where flat land is created by building steps on the side of a mountain.
Your answer choices
❌ A. the jungle - not a mountain
❌ B. The Gulf of Mexico - not a mountain
❌ C. The Yucatán peninsula- not a mountain
✅ D. The Sierra Madre is a mountain