A data set lists the favorite choice of rock bands. Which of the following charts could be used to display the data, and why?

The appropriate choice for displaying the favorite choice of rock bands from the given options is:

**Bar chart; because the data is categorical.**

### Explanation:
- **Nature of the data**: The favorite choice of rock bands is categorical data, as it consists of distinct categories (e.g., different bands).
- **Bar chart**: This type of chart is well-suited for categorical data because it visually represents the frequency or count of each category (i.e., how many people favor each rock band).
- **Box plot**: Box plots are used to display the distribution of numerical data (e.g., showing medians, quartiles, and outliers) and are not appropriate for purely categorical data.

Thus, the correct option is the bar chart chosen because it effectively presents categorical data.