Passage Summary: Baby animals play the most right when their brains are building the wiring they need for moving around and interacting with others. This wiring is essential for them to survive once they grow up.

Reasoning: Playtime in young mammals happens at the same time as rapid brain development, and the connections formed during this time are necessary for adult life.

Analysis: This stimulus establishes a strong correlation between play and essential brain development. We are looking for an answer choice that is not supported by these facts. The premises suggest that play is a functional necessity for developing survival skills, so any choice that contradicts this link or makes an unsupported leap—like claiming play is the only way to develop these skills—might be the one that doesn't fit. Treat the stimulus as absolute truth and look for the one answer that doesn't follow from that truth.