Which of the following best defines a flexible reporting format?

A flexible reporting format is best characterized by its ability to adapt and change based on varying requirements or preferences. Variability in presentation signifies that the format can easily accommodate different audiences or contexts, allowing for adjustments in how data is displayed or interpreted. This flexibility means users can tailor reports to highlight pertinent information, rearrange data elements, or modify aesthetics without presenting obstacles.

Structured data outlines and standardized templates convey a fixed format that lacks this adaptability. HTML reports, while versatile in some aspects of web presentation, do not inherently describe flexibility in reporting formats when compared to the broader concept of variability. Therefore, variability in presentation directly addresses the defining characteristic of a flexible reporting format, as it embraces alterations based on specific needs or conditions.