Climate scientist Dr. Arun Mehta has cautioned against interpreting a single unusually cold winter as evidence against global warming. Long-term climate trends are measured over decades, not individual seasons, and short-term weather events can vary widely from the overall trend. _____ a single warm winter would be equally insufficient as proof that global warming is accelerating.

Which choice completes the text with the most logical transition?

Many tech companies have adopted open-plan offices to encourage spontaneous collaboration among employees. Research on workplace productivity, however, has yielded mixed results: while some studies link open layouts to increased teamwork, others have found that noise and lack of privacy actually reduce focused work. _____ several companies have begun introducing "quiet zones" and bookable private rooms alongside their open floor plans.

Which choice completes the text with the most logical transition?

Psychologist Dr. Noor Abbasi found that students who set specific, measurable study goals ("review chapters 3 and 4 and complete 20 practice problems") performed better on exams than students who set vague goals ("study more"). Abbasi attributes the difference to the clarity of the task: specific goals allow students to track their progress and know when they have finished. _____ she notes that overly ambitious specific goals can backfire, causing frustration when students fall short and leading some to abandon their study plans entirely.

Which choice completes the text with the most logical transition?

The city of Copenhagen has invested heavily in cycling infrastructure, building protected bike lanes, traffic signals designed for cyclists, and secure parking facilities. Over 60 percent of residents now commute by bicycle, and the city has seen measurable improvements in air quality and public health. _____ city planners in other countries have sometimes struggled to replicate Copenhagen’s success, in part because the cultural and geographic factors that make cycling practical there do not apply universally.

Which choice completes the text with the most logical transition?

Economist Dr. Hana Rezaei has observed that automation tends to eliminate routine, repetitive tasks more quickly than it creates new types of jobs. In the short term, this can lead to significant displacement among workers whose skills are concentrated in those areas. _____ Rezaei notes that over longer periods, automation has historically generated entirely new industries and occupations that were impossible to predict at the time of the initial disruption, suggesting that the long-term employment picture may be more balanced than short-term data indicates.

Which choice completes the text with the most logical transition?