Final answer:
Technological advancements were probably not a factor in the collapse of the classic Maya, as the decline was more associated with environmental degradation, warfare, and economic disruptions.
Step-by-step explanation:
Which of the following was probably NOT a factor in the collapse of the classic Maya civilization? The likely incorrect answer is d) Technological advancements. The Classic Maya civilization faced a decline starting in the ninth century CE, characterized by increased warfare, environmental degradation, and other socio-economic factors. Technological advancement is typically not cited among the reasons for their collapse. In contrast, environmental factors such as climate change, warfare and conflict due to competing city-states, and trade and economic factors such as a slowdown in the production of luxury goods suffered setbacks that heavily contributed to the downfall of this once-thriving civilization.