What is the role of the overview in relation to data details?

• A. It repeats data details
• B. It contains exact figures
• C. It provides a concise summary of main trends and contrasts
• D. It criticizes data quality

Answer: (C)

The essential idea is that the overview acts as a concise summary of the overall patterns and differences in the data. It should give the reader a quick sense of the main trends and contrasts without diving into specific numbers. This helps set the big picture before you move into the details in the other paragraphs. So the correct choice captures this by saying the overview provides a concise summary of main trends and contrasts. It wouldn’t repeat exact figures, nor present data in detail, and it isn’t about judging data quality. Those elements belong in the detailed body paragraphs that follow, where you support the overview with specific numbers and comparisons.