Passage Summary: Wooden wagons from a long time ago usually rot away unless they are kept very wet or very dry. Because of this, we don't have many real wagons left to look at, so we have to study the little clay models people made back then instead.

Reasoning: Wood usually rots quickly unless in specific conditions, leading to a lack of physical vehicle remains; however, ceramic models from the same era survive better and provide the primary evidence for these vehicles.

Analysis: Since this is a 'Most Strongly Supported' task, we need to find a deduction that must follow from the provided facts. We know that wood is rare and ceramic is common, and that archaeologists rely on the ceramic models for their data. Look for an answer choice that suggests these ceramic models provide information that the actual wooden vehicles—due to their scarcity—cannot provide.