Answer: data wrangling.

## Explanation **Option B is correct** because aggregation (combining data), filtration (removing unwanted data), and conversion (changing data formats) are all core components of data wrangling. These transformations prepare raw data for analysis by making it more structured and usable. **Option A is incorrect** because data collection focuses on gathering data from various sources, not transforming it. **Option C is incorrect** because data exploration involves analyzing and visualizing data to understand patterns and relationships, which typically happens after data wrangling is complete.

Author: LeetQuiz Editorial Team