Passage Summary: A study says the Earth is permanently hotter because the last five years were records, but the author notes that even a ten-year record-breaking streak can just be a fluke.

Reasoning: While a study uses five years of record-high temperatures to argue for a permanent climate shift, historical data shows that even ten-year streaks of record highs can be attributed to normal, random variations.

Analysis: This 'Most Strongly Supported' question requires us to synthesize the two statements into a safe inference. If a ten-year period of record heat can be a random fluctuation, then a five-year period is certainly not enough to prove a permanent change. We should look for an answer that suggests the study's conclusion is premature or that five years of data is insufficient to establish a permanent trend. The focus here is on the gap between short-term data and long-term claims.