In a chart, what do data points represent?

The correct answer is Option (2) → Specific Values in Datasets

A chart is a picture of numbers. Each number from the worksheet that is plotted on the chart is a data point: it shows one specific value of the data series, drawn as a bar, a column, a point on a line or a slice of a pie. The shape that shows it is called a data marker, and markers of the same colour together make a data series.

Option (1) File Name — Incorrect. The file name is the name under which the workbook is saved; it is not plotted on the chart at all.

Option (3) Format Styles — Incorrect. Styles decide how the chart looks (colours, fonts, borders); they change the appearance, not the values shown.

Option (4) Chart Types — Incorrect. Column, line, pie or bar are types of chart; the type decides the form of the markers, but a data point is the value itself.