In general terms, to aggregate means to

• A. to collect or bring together
• B. to scatter
• C. to separate
• D. to confuse

Answer: (A)

Aggregate means to bring together into a single whole by collecting elements from different sources. This best matches the idea of uniting or combining into one group, dataset, or total. For example, when you aggregate data, you pool information from multiple studies to form a combined dataset; an aggregate score is the total obtained by adding several components. The other actions describe moving elements apart or mixing them without forming a single whole—scattering, separating, or confusing—so they don’t fit the sense of bringing things together.