The correct answer is A. The ability of civilizations to adapt to their region's physical geography.
Step-by-step explanation
Adaptive ability refers to the ability of an organism to adapt to the physical conditions of its environment. Humans are the best example of adaptability, for example during history civilizations have adapted to conditions such as cold and snow, heat and desert, wet coasts, high and dry environments among others. In the case of the Mesoamerican indigenous cultures, a sample of their adaptability are the cultivation terraces developed by the Incas as a sign of their adaptation to the rugged environment of the Andes mountains. In the case of the floating gardens of the Aztecs, it is a form of adaptation in which due to the existence of a large lake in their territory, they had to cultivate in floating gardens located on water to grow their food. Therefore, the correct answer is A. The ability of civilizations to adapt to their region's physical geography.