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Before answering any question in a Data Interpretation set, ETS advises that you
Aguess all answers, then look at the chart only if time remains
Banswer questions individually without re-reading the chart for each
Cread the chart's labels, units, and footnotes carefully BEFORE starting
Dskip the entire set if the chart looks complex
Answer & Solution
Correct answer: C. read the chart's labels, units, and footnotes carefully BEFORE starting
ETS strategy: 'Carefully read the descriptions of the data'. Chart-reading is up-front investment, paid back across the whole set of questions. Missing an 'in millions' on the y-axis turns every subsequent answer wrong by orders of magnitude. Guessing all (or skipping) forfeits points the set was designed to reward.
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