Final answer:
During the Late Classic period in Mexico, the correct answer is d) Stability and peace, which is not true, as the Mesoamerican civilizations experienced significant turmoil, collapse of society, and frequent warfare.
Step-by-step explanation:
The statement that is not true of Mexico during the late classic is d) Stability and peace. During the Late Classic period, Mesoamerican civilizations like the Maya experienced significant turmoil. While flourishing city-states (a), agricultural innovations (b), and the collapse of trade networks (c) certainly characterized the period, stability and peace were not prevalent. Towards the end of the Late Classic period, the Classic Mayan culture faced malnutrition, warfare, and competition for resources, leading to the collapse of their society. Relations between city-states varied from friendly to hostile, and wars, while often small-scale, were common occurrences, indicating a lack of prevalent peace and stability.